Basis of Presentation (Detail) $ in Millions	1 Months Ended	6 Months Ended
	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($) segment	Dec. 31, 2023 USD ($)
Capitalized Costs
Number of reportable segments | segment		4
Deferred contract costs		$ 217	$ 207
Deferred sales incentives		151	$ 148
Debt instrument repurchase amount		$ 778
Proceeds from tax-exempt bonds remarketing	$ 349
Minimum [Member]
Capitalized Costs
Deferred revenue recognition period		1 month
Contract amortization period		5 years
Maximum [Member]
Capitalized Costs
Deferred revenue recognition period		3 months
Contract amortization period		13 years