Schedule of Information Related to Stock Repurchase Programs (Detail) - USD ($)		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jul. 31, 2024	Jan. 01, 2024	Dec. 31, 2021
Class of Stock [Line Items]
Additional dollars authorized for repurchase		$ 824,360,000			$ 1,000,000,000	$ 422,880,000
Aggregate purchase price paid for shares purchased as part of publicly announced program		674,980,000	$ 552,608,000	$ 832,918,000
Stock Repurchase Programs Twenty Twenty
Class of Stock [Line Items]
Maximum number of dollars that may yet be purchased under the program							$ 358,233,000
Stock Repurchase Programs Twenty Twenty One
Class of Stock [Line Items]
Additional dollars authorized for repurchase		$ 1,000,000,000
Total number of shares purchased	[1]	3,358,261
Total number of shares cancelled		107
Average price paid per share for forfeited restricted shares		$ 0.01
Aggregate purchase price paid		$ 670,753,000
Maximum number of dollars that may yet be purchased under the program		$ 824,361,000
Stock Repurchase Programs Twenty Twenty One | Stock Repurchase Program
Class of Stock [Line Items]
Total number of shares purchased as part of publicly announced programs		2,982,906
Average price paid per share for shares purchased as part of publicly announced program		$ 200.65
Aggregate purchase price paid for shares purchased as part of publicly announced program		$ 598,522,000
Stock Repurchase Programs Twenty Twenty Two
Class of Stock [Line Items]
Additional dollars authorized for repurchase				$ 1,400,000,000
Total number of shares purchased	[1]			6,828,319
Total number of shares cancelled				8,467
Average price paid per share for forfeited restricted shares				$ 0.01
Total number of shares purchased as part of publicly announced programs				6,666,547
Aggregate purchase price paid				$ 832,915,000
Aggregate purchase price paid for shares purchased as part of publicly announced program				810,900,000
Maximum number of dollars that may yet be purchased under the program				$ 947,368,000
Stock Repurchase Programs Twenty Twenty Two | Stock Repurchase Program
Class of Stock [Line Items]
Total number of shares purchased as part of publicly announced programs				6,666,547
Average price paid per share for shares purchased as part of publicly announced program				$ 121.63
Aggregate purchase price paid for shares purchased as part of publicly announced program				$ 810,865,000
Stock Repurchase Programs Twenty Twenty Three
Class of Stock [Line Items]
Total number of shares purchased	[1]		4,022,051
Total number of shares cancelled			2,356
Average price paid per share for forfeited restricted shares			$ 0.01
Total number of shares purchased as part of publicly announced programs		2,982,906	3,855,046
Aggregate purchase price paid			$ 547,362,000
Aggregate purchase price paid for shares purchased as part of publicly announced program		$ 598,500,000	524,500,000
Maximum number of dollars that may yet be purchased under the program			$ 422,883,000
Stock Repurchase Programs Twenty Twenty Three | Stock Repurchase Program
Class of Stock [Line Items]
Total number of shares purchased as part of publicly announced programs			3,855,046
Average price paid per share for shares purchased as part of publicly announced program			$ 136.05
Aggregate purchase price paid for shares purchased as part of publicly announced program			$ 524,485,000
Stock Repurchase Programs Twenty Twenty One to Twenty Twenty Three
Class of Stock [Line Items]
Additional dollars authorized for repurchase		$ 2,400,000,000
Total number of shares purchased	[1]	14,208,631
Total number of shares cancelled		10,930
Average price paid per share for forfeited restricted shares		$ 0.01
Aggregate purchase price paid		$ 2,051,030,000
Stock Repurchase Programs Twenty Twenty One to Twenty Twenty Three | Stock Repurchase Program
Class of Stock [Line Items]
Total number of shares purchased as part of publicly announced programs		13,504,499
Average price paid per share for shares purchased as part of publicly announced program		$ 143.20
Aggregate purchase price paid for shares purchased as part of publicly announced program		$ 1,933,872,000

[1] Includes 107, 2,356, and 8,467 of restricted shares that were forfeited by former employees pursuant to the terms of our restricted stock purchase plan during 2024, 2023 and 2022, respectively.