Pensions and Other Postretirement Benefits (Contributions to Defined Benefit Pension Plans) (Details) - Mandatory Contribution - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Contributions to defined benefit pension plans	$ 5	$ 1	$ 7	$ 3
U.S.
Defined Benefit Plan Disclosure [Line Items]
Contributions to defined benefit pension plans	5	0	5	0
Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Contributions to defined benefit pension plans	$ 0	$ 1	$ 2	$ 3