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Provision for Income Taxes (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2017 USD ($)
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
Tax benefit related to reduction in company's unrecognized tax benefits | $ (57)
Pre-tax benefit on associated accrued interest reversals | 50
Continuing Operations [Member] |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
Tax benefit related to reduction in company's unrecognized tax benefits | (53)
Pre-tax benefit on associated accrued interest reversals | 47
Discontinued Operations [Member] |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
Tax benefit related to reduction in company's unrecognized tax benefits | (4)
Pre-tax benefit on associated accrued interest reversals | $ 3

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- Definition Tax benefit related to reduction in company's unrecognized tax benefits due to closure of various tax statutes of limitations + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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