Pension and Other Postretirement Benefit Plans - Summary of Expected Benefit Payments (Details) $ in Millions	Dec. 31, 2025 USD ($)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
2026	$ 88
2027	90
2028	94
2029	98
2030	102
2031 — 2035	554
United States \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2026	834
2027	832
2028	833
2029	847
2030	866
2031 — 2035	4,531
International \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2026	334
2027	323
2028	336
2029	354
2030	362
2031 — 2035	$ 2,108

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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