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Expected Cash Flows for Pension and Postretirement Benefit Plans (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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U.S. Pension Benefits
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| Expected Benefit Payments: | |
| 2012 | $ 708 |
| 2013 | 789 |
| 2014 | 873 |
| 2015 | 966 |
| 2016 | 1,065 |
| 2017 - 2021 | 7,112 |
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U.S. Pension Benefits | Plan Trusts
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| Employer Contributions: | |
| Expected Employer Contribution in 2012 | 355 |
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U.S. Pension Benefits | plan participants
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| Employer Contributions: | |
| Expected Employer Contribution in 2012 | 13 |
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U.S. Postretirement Medical Benefits
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| Expected Benefit Payments: | |
| 2012 | 233 |
| 2013 | 253 |
| 2014 | 230 |
| 2015 | 246 |
| 2016 | 260 |
| 2017 - 2021 | 1,466 |
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U.S. Postretirement Medical Benefits | Plan Trusts
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| Employer Contributions: | |
| Expected Employer Contribution in 2012 | 371 |
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U.S. Postretirement Medical Benefits | plan participants
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| Employer Contributions: | |
| Expected Employer Contribution in 2012 | 101 |
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International Pension Benefits
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| Expected Benefit Payments: | |
| 2012 | 18 |
| 2013 | 17 |
| 2014 | 19 |
| 2015 | 21 |
| 2016 | 23 |
| 2017 - 2021 | 153 |
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International Pension Benefits | Plan Trusts
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| Employer Contributions: | |
| Expected Employer Contribution in 2012 | 53 |
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International Pension Benefits | plan participants
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| Employer Contributions: | |
| Expected Employer Contribution in 2012 | $ 3 |
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- Details
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- Details
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- Definition
The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the benefits expected to be paid in Year 5. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the benefits expected to be paid in Year 4. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the benefits expected to be paid in Year 1. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the benefits expected to be paid in Year 3. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the benefits expected to be paid in Year 2. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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