Postretirement Benefits (Narrative) (Details) - Other Postretirement Benefits Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Total recognized in other comprehensive income	$ (35)
Total recognized in net periodic benefit cost or OCI	44	$ 27	$ 12
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Total recognized in other comprehensive income	(1)
Total recognized in net periodic benefit cost or OCI	$ 0	$ 1	$ 0