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Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Components Of Net Periodic Benefit Cost (Details)

v3.20.4
PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Components Of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan, Expected Amounts [Abstract] Ìý Ìý Ìý
Estimated net periodic benefit cost $ (82) Ìý Ìý
Pension Plan [Member] Ìý Ìý Ìý
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Ìý Ìý Ìý
Service cost 23 $ 17 $ 19
Interest cost 64 35 30
Expected return on plan assets (140) (55) (60)
Amortization: Ìý Ìý Ìý
Net actuarial loss 27 24 21
Amortization of prior service cost (credit) 1 1 2
Settlements (6) 0 1
Net periodic benefit cost (credit) (31) 22 13
Defined Benefit Plan, Expected Amounts [Abstract] Ìý Ìý Ìý
Estimated net periodic benefit cost (168) Ìý Ìý
Other Postretirement Benefits Plan [Member] Ìý Ìý Ìý
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Ìý Ìý Ìý
Service cost 8 2 2
Interest cost 19 10 8
Expected return on plan assets (20) (17) (18)
Amortization: Ìý Ìý Ìý
Net actuarial loss 3 5 5
Amortization of prior service cost (credit) (2) (2) (3)
Settlements 0 0 0
Net periodic benefit cost (credit) 8 $ (2) $ (6)
Defined Benefit Plan, Expected Amounts [Abstract] Ìý Ìý Ìý
Estimated net periodic benefit cost $ 86 Ìý Ìý