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Leases (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]      
Operating Lease, Right-of-Use Asset $ 474 $ 459  
Operating Lease, Liability 553 529  
Operating Lease, Cost 86 87 $ 85
Leveraged Leases, Income Statement, Income Tax Expense on Leveraged Leases $ 7 $ 8 $ 8
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets Other assets  
Operating Lease, Liability, Statement of Financial Position [Extensible List] Other liabilities Other liabilities