Environmental (Schedule of Environmental Remediation Reserves) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Environmental Remediation Obligations [Abstract]
Demerger obligations (Note 14)	$ 13	$ 14
Divestiture obligations (Note 14)	13	13
Active sites	25	25
U.S. Superfund sites	7	8
Other environmental remediation liabilities	2	2
Total	$ 60	$ 62