Income, Sales-Based And Other Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Income, Sales-Based And Other Taxes [Abstract] | |||
| Balance at January 1 | $ 8,986 | $ 7,838 | $ 7,663 |
| Additions based on current year's tax positions | 903 | 1,454 | 1,460 |
| Additions for prior years' tax positions | 496 | 448 | 464 |
| Reductions for prior years' tax positions | (190) | (532) | (249) |
| Reductions due to lapse of the statute of limitations | (4) | (117) | (588) |
| Settlements with tax authorities | (725) | (43) | (849) |
| Foreign exchange effects/other | (70) | (62) | (63) |
| Balance at December 31 | $ 9,396 | $ 8,986 | $ 7,838 |
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Unrecognized Tax Benefits Foreign Exchange Effects Other No definition available.
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