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Operating Lease Equipment (Tables)
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Future Lease Payments Receivable from Operating Leases
The following table presents future lease payments receivable from operating leases for 2022 through 2026 and thereafter:
As of December 31, 2021 ($ in millions)Undiscounted
Cash Flows
2022$138 
2023114 
202476 
202548 
202626 
Thereafter27 
Total operating lease payments$429