Pension and Other Postretirement Benefits - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other pension and postretirement	$ (5)	$ (11)
Income before taxes and equity in net earnings of affiliates	272	134
Provision for income taxes	(46)	(40)
Net income	227	93
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit plans adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes and equity in net earnings of affiliates	3	12
Provision for income taxes	(1)	(2)
Net income	2	10
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other pension and postretirement	$ 3	$ 12