Environmental (Schedule of Environmental Remediation Reserves) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Environmental Remediation Obligations [Abstract]
Demerger obligations (Note 14)	$ 22	$ 24
Divestiture obligations (Note 14)	15	14
Active sites	12	8
U.S. Superfund sites	11	12
Other environmental remediation liabilities	2	2
Total	$ 62	$ 60

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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