Retirement Benefits (Schedule of Total Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
U.S. | Pension  Benefits
Defined Benefit Plan Disclosure [Line Items]
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	$ (427)	$ (722)	$ 272
U.S. | Post-retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	(4)	0	2
Non-U.S. | Pension  Benefits
Defined Benefit Plan Disclosure [Line Items]
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	(436)	(745)	261
Non-U.S. | Post-retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	$ (13)	$ (2)	$ 13