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Leases - Lease Amounts Included in Consolidated Income Statement (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Lease income - sales-type and direct financing leases      
Sales-type lease selling price $ 1,355 $ 1,321 $ 1,360
Less: Carrying value of underlying assets (300) (410) (476)
Gross profit 1,055 911 884
Interest income on lease receivables 179 249 303
Total sales-type and direct financing lease income 1,234 1,160 1,187
Lease income - operating leases 169 255 322
Variable lease income 120 115 56
Total lease income $ 1,523 $ 1,530 $ 1,565