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Leases - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Lessee, Lease, Description [Line Items]    
Reserve for estimated credit losses on lease payment receivables $ 56 $ 64
Net investment in leases $ 261 $ 237
Minimum    
Lessee, Lease, Description [Line Items]    
Operating leases, remaining lease term (in months and years) 1 month  
Finance leases, remaining lease term (in months and years) 1 month  
Lessor lease term, operating leases (in months and years) 1 month  
Lessor lease term, sales-type leases (in months and years) 1 month  
Maximum    
Lessee, Lease, Description [Line Items]    
Operating leases, remaining lease term (in months and years) 22 years  
Finance leases, remaining lease term (in months and years) 22 years  
Lessor lease term, operating leases (in months and years) 5 years  
Lessor lease term, sales-type leases (in months and years) 5 years