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Goodwill And Other Intangibles (Estimated Future Aggregate Amortization Expense) (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]    
2022 (excludes amortization through June 30, 2022) $ 163  
2023 315  
2024 295  
2025 258  
2026 237  
Subsequent years 1,270  
Net Carrying Amount $ 2,538 $ 2,810