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Activity in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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Dec. 31, 2013
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Sep. 30, 2014
Foreign currency translation gain (loss):
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Sep. 30, 2013
Foreign currency translation gain (loss):
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Dec. 31, 2013
Foreign currency translation gain (loss):
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Dec. 31, 2012
Foreign currency translation gain (loss):
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Sep. 30, 2014
Unrealized gain (loss) on marketable securities, net of tax:
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Sep. 30, 2013
Unrealized gain (loss) on marketable securities, net of tax:
|
Dec. 31, 2013
Unrealized gain (loss) on marketable securities, net of tax:
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Dec. 31, 2012
Unrealized gain (loss) on marketable securities, net of tax:
|
Sep. 30, 2014
Unrealized gain (loss) on cash flow hedges, net of tax:
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Sep. 30, 2013
Unrealized gain (loss) on cash flow hedges, net of tax:
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Dec. 31, 2013
Unrealized gain (loss) on cash flow hedges, net of tax:
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Dec. 31, 2012
Unrealized gain (loss) on cash flow hedges, net of tax:
|
Sep. 30, 2014
Accumulated Defined Benefit Plans Adjustment [Member]
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Sep. 30, 2013
Accumulated Defined Benefit Plans Adjustment [Member]
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Dec. 31, 2013
Accumulated Defined Benefit Plans Adjustment [Member]
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Dec. 31, 2012
Accumulated Defined Benefit Plans Adjustment [Member]
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||||||||||||||||
| Accumulated Other Comprehensive Income (Loss), Net of Tax | $ (611) | $ (3,469) | $ (611) | $ (3,469) | $ (460) | $ (374) | $ (126) | $ (126) | $ 134 | $ 0 | $ (1) | $ (1) | $ 6 | $ (50) | $ (216) | $ (219) | $ (286) | $ (187) | $ (3,126) | $ (114) | $ (3,208) |
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax | 0 | (161) | |||||||||||||||||||
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (251) | 67 | (248) | (260) | (248) | (99) | |||||||||||||||
| Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax | 0 | 0 | |||||||||||||||||||
| Aggregate adjustment for the period, tax | 11 | (2) | |||||||||||||||||||
| Current period changes in fair value, tax effect | 1 | (5) | |||||||||||||||||||
| Reclassification to earnings, tax effect | 0 | 0 | |||||||||||||||||||
| Current period changes in fair value, tax effect | 77 | 3 | |||||||||||||||||||
| Reclassification to earnings, tax effect | 24 | 39 | |||||||||||||||||||
| Reclassification to earnings, tax effect | 447 | 51 | |||||||||||||||||||
| Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Tax | $ (488) | $ 0 | |||||||||||||||||||