Restructuring and Other Charges, Net - Activity and Reserve Balances for Restructuring Charges (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	$ 63	$ 117
Restructuring and other charges, net	216	66
Cash payments	(140)	(124)
Reversals and other	7	4
Restructuring reserve ending balance	146	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	(35)	(6)
Reversals and other	1
Restructuring reserve ending balance	15	6
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	57	116
Restructuring and other charges, net	173	55
Cash payments	(105)	(118)
Reversals and other	6	4
Restructuring reserve ending balance	$ 131	$ 57