Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	$ 17,655
Accumulated other comprehensive loss, net of tax	14,611	$ 17,655
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	(2,066)	(1,133)	$ (285)
OCI before reclassifications	367	(933)	(848)
Amounts reclassified from AOCI	0	0	0
Net current period other comprehensive income (loss)	414	(933)	(848)
Accumulated other comprehensive loss, net of tax	(1,652)	(2,066)	(1,133)
Other Comprehensive Income (Loss), Reclassification Adjustment From AOCI Due To Business Divestitures	47
Gains (Losses) on Derivatives Qualifying as Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	1	1	(7)
OCI before reclassifications	0	0	1
Amounts reclassified from AOCI	0	0	7
Net current period other comprehensive income (loss)	0	0	8
Accumulated other comprehensive loss, net of tax	1	1	1
Other Comprehensive Income (Loss), Reclassification Adjustment From AOCI Due To Business Divestitures	0
Pension and Postretirement Liability Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	(133)	(291)	(406)
OCI before reclassifications	(100)	148	97
Amounts reclassified from AOCI	(11)	10	18
Net current period other comprehensive income (loss)	(112)	158	115
Accumulated other comprehensive loss, net of tax	(245)	(133)	(291)
Other Comprehensive Income (Loss), Reclassification Adjustment From AOCI Due To Business Divestitures	(1)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	(2,198)	(1,423)	(698)
OCI before reclassifications	267	(785)	(750)
Amounts reclassified from AOCI	(11)	10	25
Net current period other comprehensive income (loss)	302	(775)	(725)
Accumulated other comprehensive loss, net of tax	(1,896)	$ (2,198)	$ (1,423)
Other Comprehensive Income (Loss), Reclassification Adjustment From AOCI Due To Business Divestitures	$ 46