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Leases (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]      
Sales-type Lease, Lease Income $ 12 $ 13 $ 14
Total lease receivables $ 464 [1] $ 391  
[1] Excludes net investment in leveraged leases of $176 million.