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Leases - Schedule Of Lease-Related Assets And Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Assets:    
Operating leases $ 2,065 $ 2,113
Finance leases 587 637
Total lease assets $ 2,652 $ 2,750
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant and Equipment, Net Property, Plant and Equipment, Net
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating leases Operating leases
Liabilities    
Operating leases $ 364 $ 392
Finance leases 131 143
Right-of-use operating lease obligations 1,752 1,755
Finance leases 579 577
Total lease liabilities $ 2,826 $ 2,867
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Less amounts due within one year Less amounts due within one year
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Other Accrued Liabilities, Current Other Accrued Liabilities, Current
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Long-Term Debt, Excluding Current Maturities Long-Term Debt, Excluding Current Maturities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Right-of-use operating lease obligations Right-of-use operating lease obligations
Weighted-average remaining term:    
Operating leases 10 years 1 month 6 days 10 years 2 months 12 days
Finance leases 9 years 6 months 10 years 4 months 24 days
Weighted-average discount rate:    
Operating leases 4.40% 4.40%
Finance leases 4.50% 4.40%