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COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Effects of One Basis Point Change on Projected Benefit Obligation (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($)
Pension Plan, Defined Benefit [Member] |
effects of one-basis point change one PBO [Line Items] |
Defined Benefit Plan, Effect of One Percentage Point Increase on Projected Benefit Obligation | $ (60)
Defined Benefit Plan, Effect of One Percentage Point Decrease on Projected Benefit Obligation | 66
Other Postretirement Benefit Plan, Defined Benefit [Member] |
effects of one-basis point change one PBO [Line Items] |
Defined Benefit Plan, Effect of One Percentage Point Increase on Projected Benefit Obligation | (2)
Defined Benefit Plan, Effect of One Percentage Point Decrease on Projected Benefit Obligation | 3
Change in Assumptions for Pension Plans | U.S. Pension Benefits |
effects of one-basis point change one PBO [Line Items] |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | 1,119
Change in Assumptions for Pension Plans | U.S. Postretirement Medical Benefits |
effects of one-basis point change one PBO [Line Items] |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | 51
Change in Assumptions for Pension Plans | Pension Plan, Defined Benefit [Member] |
effects of one-basis point change one PBO [Line Items] |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | 383
Change in Assumptions for Pension Plans | Other Postretirement Benefit Plan, Defined Benefit [Member] |
effects of one-basis point change one PBO [Line Items] |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | $ 234

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- Definition Net increase or decrease in the plan benefit obligation during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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