Activity in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) (USD $) In Millions |
9 Months Ended | |
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Sep. 30, 2011 |
Sep. 30, 2010 |
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Foreign currency translation gain (loss) |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Aggregate adjustment for the period, tax | $ 4 | $ (36) |
Unrealized gain (loss) on marketable securities, net of tax |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Current period changes in fair value, tax effect | 10 | 20 |
| Reclassification to earnings, tax effect | (13) | 6 |
Unrealized gain (loss) on cash flow hedges, net of tax |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Current period changes in fair value, tax effect | (47) | (34) |
| Reclassification to earnings, tax effect | 30 | (27) |
Unrecognized pension and postretirement benefit costs, net of tax |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Reclassification to earnings, tax effect | 138 | 78 |
| Adjustment for Early Retirement Reinsurance Program, tax effect | $ 4 | $ 0 |
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- Definition Accumulated Other Comprehensive Income (Loss) [Line Items]
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- Definition Tax effect of the gain (loss) adjustment to other comprehensive income resulting from the settlement or curtailment of the entity's defined benefit pension and other postretirement plans. A settlement is defined as a transaction that (a) is an irrevocable action, (b) relieves the employer or plan of a primary responsibility for a pension benefit obligation, and (c) eliminates significant risks related to the obligations and the assets used to effect the settlement. A curtailment is an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax effect on the reclassification adjustment for gains or losses realized upon the sale of securities during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax effect on reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition For each annual statement of income presented, the tax effect of the net gain (loss) recognized in other comprehensive income that is a reclassification adjustment of other comprehensive income as a result of being recognized as a component of net periodic benefit cost for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax effect on the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax effect on gross appreciation or the gross loss in value of the total of unsold securities during the period being reported on. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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