v3.20.4
Leases (Lessor: Summary of Sales-Type, Direct Financing, Operating and Leveraged Leases) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Net Interest Income and Other Financing Income    
Sales-Type and Direct Financing $ 59 $ 33
Operating Lease, Lease Income 8 11
Leveraged Leases, Income Loss 14 14
Lease Income 81 58
Sales-Type and Direct Financing [Abstract]    
Sales-type and direct financing lease receivable 1,293 1,068
Sales-type and direct financing, unearned income. (232) (215)
Sales type and direct financing lease Guaranteed residual 36 32
Sales Type and Direct Financing Unguaranteed residual 183 152
Total net investment 1,280 1,037
Operating [Abstract]    
Operating 60 113
Unearned Income (15) (29)
Guaranteed residual 0 0
Unguaranteed residual 155 213
Total net investment 200 297
Leveraged    
Lease Receivable 174 182
Unearned Income (96) (113)
Guaranteed residual 0 0
Unguaranteed residual 144 147
Total net investment 222 216
Total    
Lease Receivable 1,527 1,363
Unearned Income (343) (357)
Guaranteed residual 36 32
Unguaranteed residual 482 512
Total net investment $ 1,702 $ 1,550