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Consolidated Statement of Comprehensive Income (Loss) (Parentheticals) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract]      
Other comprehensive income (loss), tax $ 0 $ 0 $ (1)