{"cik":79879,"taxonomy":"us-gaap","tag":"StockholdersEquityNoteStockSplitConversionRatio1","label":"Stockholders' Equity Note, Stock Split, Conversion Ratio","description":"Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.","entityName":"PPG INDUSTRIES INC","units":{"pure":[{"start":"2015-04-01","end":"2015-06-30","val":2,"accn":"0000079879-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":2,"accn":"0000079879-15-000051","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0000079879-16-000065","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-18","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":2,"accn":"0000079879-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-04-21","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-12-31","val":2,"accn":"0000079879-17-000009","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-16","frame":"CY2016"}]}}