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Retirement Obligation, Revision of Estimate","description":"Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.","units":{"RUB":[{"start":"2012-01-01","end":"2012-12-31","val":-15000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-453000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":-453000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":26000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2009-01-01","end":"2009-12-31","val":17693000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-23813000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":-23813000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-19242000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":-19242000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-380000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"AssetRetirementObligationsNoncurrent":{"label":"Asset 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An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.","units":{"RUB":[{"end":"2013-12-31","val":2743000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3022000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"RUB":[{"end":"2012-12-31","val":454978000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2012Q4I"},{"end":"2013-12-31","val":485524000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2013-12-31","val":485524000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":608927000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}],"USD":[{"end":"2008-12-31","val":14717179000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2008Q4I"},{"end":"2009-12-31","val":15780745000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"end":"2009-12-31","val":15764489000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2010-12-31","val":14478042000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2010-12-31","val":14478042000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2011-12-31","val":15318229000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"end":"2011-12-31","val":15327136000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011Q4I"},{"end":"2012-12-31","val":14979848000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012Q4I"}]}},"AssetsCurrent":{"label":"Assets, Current","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"RUB":[{"end":"2012-12-31","val":92362000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2012Q4I"},{"end":"2013-12-31","val":116676000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2013-12-31","val":116676000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":152124000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}],"USD":[{"end":"2008-12-31","val":3022423000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2008Q4I"},{"end":"2009-12-31","val":4394956000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"end":"2009-12-31","val":4401328000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2010-12-31","val":3116603000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2010-12-31","val":3116603000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2011-12-31","val":3837648000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"end":"2011-12-31","val":3837648000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3040957000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012Q4I"}]}},"AssetsHeldForSaleCurrent":{"label":"Assets 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year.","units":{"USD":[{"end":"2008-12-31","val":46426000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2008Q4I"},{"end":"2009-12-31","val":18519000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2009-12-31","val":18519000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"end":"2010-12-31","val":10430000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2010-12-31","val":10430000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2011-12-31","val":2188000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2011Q4I"}]}},"AssetsHeldForSaleLongLivedFairValueDisclosure":{"label":"Assets Held-for-sale, Long Lived, Fair Value Disclosure","description":"Fair value portion of assets classified as held for sale.","units":{"USD":[{"end":"2009-12-31","val":18500000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2010-12-31","val":10400000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2010Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperation":{"label":"Disposal Group, Including Discontinued Operation, Assets","description":"Amount classified as assets attributable to disposal group held for sale or disposed of.","units":{"RUB":[{"end":"2014-12-31","val":2004000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent":{"label":"Disposal Group, Including Discontinued Operation, Assets, Current","description":"Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.","units":{"RUB":[{"end":"2014-12-31","val":238000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrent":{"label":"Assets of Disposal Group, Including Discontinued Operation, Noncurrent (Deprecated 2014-01-31)","description":"The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for noncurrent assets (assets with expected useful life longer than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold or that has subsequently been disposed of through sale, as of the financial statement 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Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity 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Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents.","units":{"RUB":[{"end":"2010-12-31","val":28273000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":59589000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2011-12-31","val":59589000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2011Q4I"},{"end":"2012-12-31","val":22014000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2012-12-31","val":22014000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":30612000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2013-12-31","val":30612000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":61566000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":31316000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-37575000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":-37575000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":8598000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":8598000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":30954000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2007-01-01","end":"2007-12-31","val":458700000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":301085000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2008-01-01","end":"2008-12-31","val":308674000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":1401162000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2009-01-01","end":"2009-12-31","val":1393023000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":1393023000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-1601316000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":-1601316000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":-1601316000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":923132000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":923132000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-1126023000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"CashDivestedFromDeconsolidation":{"label":"Cash Divested from Deconsolidation","description":"Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash.","units":{"RUB":[{"start":"2012-01-01","end":"2012-12-31","val":227000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":227000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":-4552000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-2045000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":-2045000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":115000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":115000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"}]}},"CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Operating Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":6543000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-2733000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":-2733000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-547000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":-547000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"}]}},"CommonStockDividendsPerShareDeclared":{"label":"Common Stock, Dividends, Per Share, Declared","description":"Aggregate dividends declared during the period for each share of common stock outstanding.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":14.54,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":14.71,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":14.71,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":19.82,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":19.82,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":24.8,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD/shares":[{"start":"2008-01-01","end":"2008-12-31","val":3.2,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":3.2,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":0.647,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0.99,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":0.497,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":0.497,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0.516,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":0.516,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.443,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}],"RUB/shares":[{"start":"2012-01-01","end":"2012-12-31","val":14.71,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":19.82,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":24.8,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}]}},"CommonStockParOrStatedValuePerShare":{"label":"Common Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of common stock.","units":{"RUB":[{"end":"2009-12-31","val":0.1,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2010-12-31","val":0.1,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0.1,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2011-12-31","val":0.1,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0.1,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"end":"2012-12-31","val":0.1,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012Q4I"}]}},"CommonStockSharesAuthorized":{"label":"Common Stock, Shares Authorized","description":"The maximum number of common shares permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2008-12-31","val":2096975792,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2008Q4I"},{"end":"2009-12-31","val":2096975792,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2009-12-31","val":2096975792,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"end":"2010-12-31","val":2096975792,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2096975792,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2011-12-31","val":2096975792,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2096975792,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"end":"2012-12-31","val":2096975792,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012Q4I"}]}},"CommonStockSharesIssued":{"label":"Common Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2000-12-31","val":345244080,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2000Q4I"},{"end":"2008-12-31","val":1993326138,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2008Q4I"},{"end":"2009-12-31","val":1993326138,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"end":"2009-12-31","val":1993326138,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1993326138,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2010-12-31","val":1993326138,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2066413562,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"end":"2011-12-31","val":2066413562,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2066413562,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19"},{"end":"2012-12-31","val":2066413562,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2066413562,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2013-12-31","val":2066413562,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2066413562,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. 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This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"RUB":[{"end":"2012-12-31","val":207000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2012Q4I"},{"end":"2013-12-31","val":207000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"end":"2013-12-31","val":207000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":207000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}],"USD":[{"end":"2008-12-31","val":50558000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2008Q4I"},{"end":"2009-12-31","val":50558000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"end":"2009-12-31","val":50558000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009Q4I"},{"end":"2010-12-31","val":50558000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"end":"2010-12-31","val":50558000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2010Q4I"},{"end":"2011-12-31","val":50814000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"end":"2011-12-31","val":50814000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011Q4I"},{"end":"2012-12-31","val":50814000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012Q4I"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Parent","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":44759000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":27732000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":27732000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":78485000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":78485000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":60558000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2010-01-01","end":"2010-12-31","val":1357096000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1319958000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1040916000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":3749000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":772000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":772000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1056000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":1056000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":3575000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2010-01-01","end":"2010-12-31","val":156959000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":153250000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":34794000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest":{"label":"Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":48508000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":28504000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":28504000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":79541000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":79541000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":64133000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2007-01-01","end":"2007-12-31","val":3014749000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":624930000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2008-01-01","end":"2008-12-31","val":604524000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":737979000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2009-01-01","end":"2009-12-31","val":742669000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":742669000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":1506517000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":1506517000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":1514055000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1467753000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":1473208000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1075710000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangeDueToNetIncomeAttributableToParentAndEffectsOfChangesNet":{"label":"Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net","description":"This element represents the total net income attributable to the parent for the period and the effect of net changes during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not result in a deconsolidation of the subsidiary from the consolidated financial statements.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":43155000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":29699000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":29699000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":79839000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":79839000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":51799000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2008-01-01","end":"2008-12-31","val":1965314000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":1320602000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":1320602000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":1239047000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":1239047000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":1239047000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1570034000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":1570034000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1008487000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet":{"label":"Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Net","description":"The increase (decrease) during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not arise in a deconsolidation of the subsidiary from the consolidated financial statements.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":840000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":57000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":57000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2014-01-01","end":"2014-12-31","val":-23000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-13793000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":306399000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":306399000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-141584000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":-141584000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":-141584000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":126090000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":126090000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1203000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary":{"label":"Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Repurchase of Shares by Subsidiary","description":"Represents the repurchase of equity (treasury stock) by a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent; but not deconsolidation by the parent.","units":{"RUB":[{"start":"2012-01-01","end":"2012-12-31","val":-57000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":-57000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"}],"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-1203000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"CostMethodInvestments":{"label":"Cost Method Investments","description":"Amount, after adjustment, of cost-method investment. 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The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-8000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2010"}]}},"DefinedBenefitPlanFundedStatusOfPlan":{"label":"Defined Benefit Plan, Funded (Unfunded) Status of Plan","description":"Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. 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Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts to cover vested benefits.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1245000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":794000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2010"}]}},"DefinedBenefitPlanServiceCost":{"label":"Defined Benefit Plan, Service Cost","description":"Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1228000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":1281000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2010"}]}},"DefinedBenefitPlanSettlementsPlanAssets":{"label":"Defined Benefit Plan, Plan Assets, Payment for Settlement","description":"Amount of payment, which decreases plan assets of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. 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Includes production and non-production related 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Depletion and Amortization","description":"The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":63932000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":67910000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":67910000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":73253000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":73253000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":74710000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2007-01-01","end":"2007-12-31","val":1674885000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":2151125000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2008-01-01","end":"2008-12-31","val":2153077000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":1839568000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2009-01-01","end":"2009-12-31","val":1844174000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":1844174000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":2000496000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":2000496000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":2000496000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":2335204000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":2335204000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2274870000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"DerivativeAssetsNoncurrent":{"label":"Derivative 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A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.","units":{"item":[{"start":"2012-01-01","end":"2012-12-31","val":3,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"RUB":[{"start":"2011-01-01","end":"2011-12-31","val":80295000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":93794000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2012-01-01","end":"2012-12-31","val":93794000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":101758000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24"},{"start":"2013-01-01","end":"2013-12-31","val":101758000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":102349000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014"}],"USD":[{"start":"2007-01-01","end":"2007-12-31","val":3184928000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":3647336000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2008-01-01","end":"2008-12-31","val":3627246000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":2547567000,"accn":"0001047469-10-006143","fy":2009,"fp":"FY","form":"20-F","filed":"2010-06-28"},{"start":"2009-01-01","end":"2009-12-31","val":2555885000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2009-01-01","end":"2009-12-31","val":2555885000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":2734559000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17"},{"start":"2010-01-01","end":"2010-12-31","val":2734559000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2010-01-01","end":"2010-12-31","val":2734559000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":2808885000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23"},{"start":"2011-01-01","end":"2011-12-31","val":2808885000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1996061000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012"}]}},"OperatingLeasesFutureMinimumPaymentsDue":{"label":"Operating Leases, Future Minimum Payments Due","description":"Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.","units":{"RUB":[{"end":"2013-12-31","val":7562000000,"accn":"0001047469-14-004114","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-24","frame":"CY2013Q4I"},{"end":"2014-12-31","val":8438000000,"accn":"0001047469-15-003723","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-21","frame":"CY2014Q4I"}],"USD":[{"end":"2010-12-31","val":471557000,"accn":"0001047469-11-005907","fy":2010,"fp":"FY","form":"20-F","filed":"2011-06-17","frame":"CY2010Q4I"},{"end":"2011-12-31","val":470195000,"accn":"0001047469-12-004579","fy":2011,"fp":"FY","form":"20-F","filed":"2012-04-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":277785000,"accn":"0001047469-13-004560","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-19","frame":"CY2012Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueCurrent":{"label":"Operating Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. 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Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. 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