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Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT PLANS - HEALTH CARE TREND RATES, EFFECTS OF ONE PERCENT CHANGE IN HEALTH CARE COST RATES AND EXPECTED BENEFIT PAYMENTS (Details)

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EMPLOYEE BENEFIT PLANS - HEALTH CARE TREND RATES, EFFECTS OF ONE PERCENT CHANGE IN HEALTH CARE COST RATES AND EXPECTED BENEFIT PAYMENTS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Health care trend rate Ìý Ìý
Health care trend rate (as a percent) 7.00% 7.00%
Ultimate health care trend rate (as a percent) 5.00% 5.00%
Expected benefit payments: Ìý Ìý
Net transfer out of Level 3 assets due to a change in the significance of unobservable inputs for several investments $ 0 Ìý
Defined Benefit Plans | United States Ìý Ìý
Projected benefit obligation in excess of plan assets Ìý Ìý
Projected benefit obligation 1,153 $ 1,049
Fair value of plan assets 821 721
Accumulated benefit obligation in excess of plan assets Ìý Ìý
Projected benefit obligation 1,153 1,049
Accumulated benefit obligation 1,127 1,022
Fair value of plan assets 821 721
2018 expected employer contributions: Ìý Ìý
To plan trusts 51 Ìý
Expected benefit payments: Ìý Ìý
2018 72 Ìý
2019 61 Ìý
2020 62 Ìý
2021 62 Ìý
2022 107 Ìý
2023 - 2027 370 Ìý
Defined Benefit Plans | Non-U.S. Defined Benefit Plans Ìý Ìý
Projected benefit obligation in excess of plan assets Ìý Ìý
Projected benefit obligation 1,213 2,050
Fair value of plan assets 815 1,623
Accumulated benefit obligation in excess of plan assets Ìý Ìý
Projected benefit obligation 1,026 1,121
Accumulated benefit obligation 957 1,043
Fair value of plan assets 638 $ 721
2018 expected employer contributions: Ìý Ìý
To plan trusts 38 Ìý
Expected benefit payments: Ìý Ìý
2018 71 Ìý
2019 71 Ìý
2020 74 Ìý
2021 78 Ìý
2022 79 Ìý
2023 - 2027 428 Ìý
Other Postretirement Benefit Plans | United States Ìý Ìý
2018 expected employer contributions: Ìý Ìý
To plan trusts 7 Ìý
Expected benefit payments: Ìý Ìý
2018 7 Ìý
2019 7 Ìý
2020 6 Ìý
2021 6 Ìý
2022 6 Ìý
2023 - 2027 $ 31 Ìý