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While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0001193125-11-126074","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-04","frame":"CY2011Q1"}]}},"PartnersCapital":{"label":"Partners' Capital","description":"The amount of ownership interest of different classes of partners in limited partnership.","units":{"USD":[{"end":"2010-12-31","val":2164000000,"accn":"0001193125-11-126074","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-04","frame":"CY2010Q4I"},{"end":"2011-03-31","val":2143000000,"accn":"0001193125-11-126074","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-04","frame":"CY2011Q1I"}]}},"PreferredStockSharesAuthorized":{"label":"Preferred Stock, Shares Authorized","description":"The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2010-12-31","val":75000000,"accn":"0001193125-11-047553","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. 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