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(Schedule of Unrecognized Tax Benefits Rollforward) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Tax Disclosure [Abstract]      
Balance at January 1 $ (177) $ (166) $ (143)
(Additions) reductions for tax positions related to current year (13) (7) (13)
(Additions) for tax positions related to prior years (11) (10) (23)
Reductions for tax positions related to prior years 1 3 1
Settlements 17 1 10
Expiration of statutes of limitations 11 1 1
Currency translation adjustment 1 1 1
Balance at December 31 $ (173) $ (177) $ (166)