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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement of Comprehensive Income [Abstract]      
Unrealized loss on certain investments, tax $ 0 $ 0 $ 0
Unrealized gain/(loss) arising during period, tax 12 (16) (4)
Reclassification adjustment for (gain)/loss included in net earnings, tax (3) 2 (7)
Net actuarial gain/(loss) arising during the period, tax (22) (32) 111
Amortization of actuarial loss included in net periodic pension cost, tax (11) (8) (52)
Settlements included in net (loss)/income, tax 0 (2) 0
Amortization of prior service credits included in net periodic pension cost, tax 2 1 6
Prior service cost/(credit) arising during the period, tax 0 0 (2)
Pension and postretirement (cost)/benefit related to our equity method investments, tax $ 0 $ (2) $ 0