Supplemental Equity, Redeemable Noncontrolling Interest, and Comprehensive Income Information - Schedule of Reclassifications Out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Amount Reclassified from Accumulated Other Comprehensive Income
Provision for income taxes	$ 261	$ 308	$ 665	$ 818
Reclassification out of Accumulated Other Comprehensive Income (Loss) \| Defined benefit pension and postretirement plans adjustment
Amount Reclassified from Accumulated Other Comprehensive Income
Provision for income taxes	$ (15)	$ (17)	$ (46)	$ (52)

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details