Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
AOCI Attributable to Parent, Net of Tax
Accumulated other comprehensive income (loss) beginning balance	$ (1,902)	$ (1,832)
Other comprehensive income (loss) before reclassifications	(466)	(102)
Reclassifications to net earnings	49	51
Other comprehensive income (loss)	(417)	(51)
Accumulated other comprehensive income (loss) ending balance	(2,319)	(1,883)
Tax provision on net actuarial gain (loss) and prior service costs related to pension and other postretirement benefit plans	16	20
Cumulative Translation Adjustments
AOCI Attributable to Parent, Net of Tax
Accumulated other comprehensive income (loss) beginning balance	(445)	(303)
Other comprehensive income (loss) before reclassifications	(452)	(113)
Reclassifications to net earnings	0	0
Other comprehensive income (loss)	(452)	(113)
Accumulated other comprehensive income (loss) ending balance	(897)	(416)
Net Actuarial Loss and Prior Service Cost
AOCI Attributable to Parent, Net of Tax
Accumulated other comprehensive income (loss) beginning balance	(1,434)	(1,509)
Other comprehensive income (loss) before reclassifications	0	11
Reclassifications to net earnings	49	51
Other comprehensive income (loss)	49	62
Accumulated other comprehensive income (loss) ending balance	(1,385)	(1,447)
Other Comprehensive Income (Loss), Discontinued Operations
AOCI Attributable to Parent, Net of Tax
Accumulated other comprehensive income (loss) beginning balance	(23)	(20)
Other comprehensive income (loss) before reclassifications	(14)	0
Reclassifications to net earnings	0	0
Other comprehensive income (loss)	(14)	0
Accumulated other comprehensive income (loss) ending balance	$ (37)	$ (20)