Restructuring and Other Charges, Net - Activity and Reserve Balances for Restructuring Charges (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	$ 63	$ 117
Restructuring and other charges, net	182	66
Cash payments	(16)	(124)
Reversals and other	(1)	4
Restructuring reserve ending balance	228	63
Severance and Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	6	1
Restructuring and other charges, net	43	11
Cash payments	(1)	(6)
Restructuring reserve ending balance	48	6
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	57	116
Restructuring and other charges, net	139	55
Cash payments	(15)	(118)
Reversals and other	(1)	4
Restructuring reserve ending balance	$ 180	$ 57