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Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Statement of comprehensive income [abstract]        
Income tax relating to currency translation adjustments $ 0 $ 0 $ 0 $ 0
Income tax relating to actuarial loss on post employment benefit obligations 0 0 0 0
Income tax relating to net change on equity investments $ (1) $ 2 $ (1) $ (6)