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COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Expected Cash Flows for Pension and Postretirement Benefit Plans (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
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U.S. Pension Benefits
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| Expected Benefit Payments: | |
| 2013 | $ 798 |
| 2014 | 887 |
| 2015 | 978 |
| 2016 | 1,076 |
| 2017 | 1,182 |
| 2018 - 2022 | 7,815 |
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U.S. Pension Benefits | 2013 (expected) to plan trusts
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| Employer Contributions: | |
| Expected Employer Contribution in 2013 | 0 |
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U.S. Pension Benefits | 2013 (expected) to plan participants
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| Employer Contributions: | |
| Expected Employer Contribution in 2013 | 14 |
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U.S. Postretirement Medical Benefits
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| Expected Benefit Payments: | |
| 2013 | 255 |
| 2014 | 237 |
| 2015 | 254 |
| 2016 | 271 |
| 2017 | 288 |
| 2018 - 2022 | 1,575 |
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U.S. Postretirement Medical Benefits | 2013 (expected) to plan trusts
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| Employer Contributions: | |
| Expected Employer Contribution in 2013 | 0 |
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U.S. Postretirement Medical Benefits | 2013 (expected) to plan participants
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| Employer Contributions: | |
| Expected Employer Contribution in 2013 | 111 |
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International Pension Benefits
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| Expected Benefit Payments: | |
| 2013 | 20 |
| 2014 | 22 |
| 2015 | 25 |
| 2016 | 27 |
| 2017 | 30 |
| 2018 - 2022 | 199 |
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International Pension Benefits | 2013 (expected) to plan trusts
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| Employer Contributions: | |
| Expected Employer Contribution in 2013 | 76 |
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International Pension Benefits | 2013 (expected) to plan participants
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| Employer Contributions: | |
| Expected Employer Contribution in 2013 | $ 3 |