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Comprehensive Income (Loss) (Summary of the Activity in AOCI, Net of the Related Tax Effects) (Details)
$ in Millions
3 Months Ended
Mar. 31, 2023
USD ($)
Comprehensive Income (Loss) [Abstract]  
Balance at beginning of period $ 8
Other comprehensive loss before reclassifications:  
Pre-tax amount (2)
After-tax amount (1)
Amounts reclassified from AOCI (1)
Total other comprehensive loss (2)
Balance at end of period $ 6