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Goodwill and Intangible Assets (Narrative) (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]      
Amortization of Intangible Assets $ 1.2 $ 1.1 $ 1.0