(Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (1,666)	$ (4,342)
Balance at end of period	(1,925)	(1,666)	$ (4,342)
Defined Benefit Pension and Postretirement Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(962)	(1,880)	(2,277)
Other comprehensive income (loss) before reclassifications	(319)	713	227
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	80	0
Amounts reclassified from accumulated other comprehensive income (loss)	86	125	170
Balance at end of period	(1,195)	(962)	(1,880)
Change in Cumulative Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(694)	(2,457)	(2,465)
Other comprehensive income (loss) before reclassifications	(38)	(115)	(319)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	1,692	0
Amounts reclassified from accumulated other comprehensive income (loss)	10	184	327
Other Comprehensive Income (Loss) Attributable to Noncontrolling Interest	0	2	0
Balance at end of period	(722)	(694)	(2,457)
Net Gains and Losses on Cash Flow Hedging Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(10)	(5)	3
Other comprehensive income (loss) before reclassifications	0	3	(34)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	1	0
Amounts reclassified from accumulated other comprehensive income (loss)	2	(9)	26
Balance at end of period	$ (8)	$ (10)	$ (5)