Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets
Operating lease assets	$ 1,119	$ 1,230
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other, net	Other, net
Finance lease assets	$ 236	$ 260
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net of accumulated depreciation of $23,121 and $21,318	Property, plant and equipment, net of accumulated depreciation of $23,121 and $21,318
Total leased assets	$ 1,355	$ 1,490
Current
Operating	253	268
Finance	$ 17	$ 16
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long-Term Debt and Lease Obligation, Current	Long-Term Debt and Lease Obligation, Current
Noncurrent
Operating	$ 959	$ 1,040
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other	Other
Finance	$ 198	$ 215
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	LONG-TERM DEBT	LONG-TERM DEBT
Total lease liabilities	$ 1,427	$ 1,539
Weighted-average remaining lease term (years)
Operating leases	7 years 8 months 12 days	8 years 2 months 12 days
Finance leases	11 years 4 months 24 days	11 years 3 months 18 days
Weighted-average discount rate
Operating leases	8.90%	7.59%
Finance leases	4.40%	4.98%