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Taxes on Income - Unrecognized Tax Benefits (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | ||||||||
| Balance January 1 | $ 4,425 | $ 4,277 | $ 4,919 | |||||
| Additions related to current year positions | 320 | 496 | 695 | |||||
| Additions related to prior year positions | 177 | 58 | 145 | |||||
| Reductions for tax positions of prior years | (747) | [1] | (320) | [1] | (1,223) | [1] | ||
| Settlements | (603) | (67) | (259) | |||||
| Lapse of statute of limitations | (69) | (19) | 0 | |||||
| Balance December 31 | $ 3,503 | $ 4,425 | $ 4,277 | |||||
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