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Leases - Components of Lease Income (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Sales-type leases:      
Selling profit $ 61 $ 48 $ 20
Interest income 85 76 33
Operating lease income $ 297 $ 257 $ 36
Sales-Type Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Revenues Revenues Revenues
Product revenue      
Sales-type leases:      
Selling profit $ 141 $ 106 $ 48
Cost of product      
Sales-type leases:      
Selling profit $ (80) $ (58) $ (28)