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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
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Dec. 31, 2014
Class A common stock | Common Stock |  |
Restricted stock and performance-based shares settled in cash for taxes (in shares, less than 1 million) | 1 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | [1]
Restricted stock instruments settled in cash for taxes shares (in shares, less than 1 million) | 1 v_RestrictedStockInstrumentsSettledInCashForTaxesShares / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | [2]
[1] | Increase in class A common stock is less than 1 million shares.
[2] | Decrease in class A common stock is less than 1 million shares.

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- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Restricted Stock Instrument Settled in Cash for Taxes, Shares + References No definition available. + Details
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- Details
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Balance Type: |
Period Type: |