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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
As of December 31, 2021, future minimum annual lease payments under all non-cancelable operating leases were as follows:
(in millions)Future Minimum Lease Payments
2022$870 
2023763 
2024616 
2025510 
2026407 
Thereafter1,716 
Total future minimum lease payments4,882 
Less imputed interest(609)
Total$4,273