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Leases - Balance Sheet Classification and Other Information (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Balance Sheet Classification    
Right-of-use asset $ 501 $ 472
Current lease liabilities (included in other current liabilities) 64 45
Long-term lease liabilities 478 455
Total operating lease liabilities $ 542 $ 500
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Other Current Liabilities Other Current Liabilities
Other Information    
Weighted-average remaining lease term for operating leases 32 years 35 years
Weighted-average discount rate for operating leases 4.90% 5.00%