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Projected Benefit Obligation, Accumulated Benefit Obligation, and Fair Value of Plan Assets for Pension Plans With an Accumulated Benefit Obligation in Excess of Plan Assets (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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U.S. Pension Benefits
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Projected benefit obligation | $ 24,386 | $ 3,227 |
| Accumulated benefit obligation | 22,574 | 3,195 |
| Fair value of plan assets | 22,663 | 1,934 |
| Projected benefit obligation | 7,499 | 3,227 |
| Accumulated benefit obligation | 7,395 | 3,195 |
| Fair value of plan assets | 6,646 | 1,934 |
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International Pension Benefits
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Projected benefit obligation | 814 | 662 |
| Accumulated benefit obligation | 714 | 323 |
| Fair value of plan assets | 594 | 543 |
| Projected benefit obligation | 499 | 362 |
| Accumulated benefit obligation | 448 | 323 |
| Fair value of plan assets | $ 296 | $ 257 |
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- Definition
Defined Benefit Plan, Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets, Aggregate Accumulated Benefit Obligation No definition available.
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- Details
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- Definition
If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
If aggregate disclosures are presented, the aggregate benefit obligation for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
If aggregate disclosures are presented, the aggregate fair value of plan assets for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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