Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Balances	$ 8,493,757	$ 8,120,218	$ 7,914,302	$ 7,380,587	$ 6,750,260	$ 6,108,757	$ 7,914,302	$ 6,108,757
Dividends declared	(69,483)	(70,694)	(72,316)	(60,031)	(62,088)	(64,344)
Noncontrolling investors, net		(1,877)	(7,387)	(4,743)	(630)	(21,633)
Noncontrolling investors, net	5,183
Share repurchases	(331,318)	(380,206)	(353,997)	(481,676)	(517,024)	(389,190)
Equity-based compensation	10,679	10,912	(5,628)	7,939	9,712	(2,071)
Net income	579,782	816,177	644,333	918,475	1,214,652	1,107,354	2,040,292	3,240,481
Other comprehensive loss, net of tax	(1,521)	(773)	911	2,251	(14,295)	11,387	(1,383)	(657)
Balances	8,687,079	8,493,757	8,120,218	7,762,802	7,380,587	6,750,260	8,687,079	7,762,802
Common Stock
Balances	650	650	650	649	649	649	650	649
Balances	650	650	650	649	649	649	650	649
Treasury Stock
Balances	(5,179,722)	(4,800,513)	(4,459,513)	(3,566,493)	(3,050,497)	(2,674,267)	(4,459,513)	(2,674,267)
Share repurchases	(331,318)	(380,206)	(353,997)	(481,676)	(517,024)	(389,190)
Equity-based compensation	57	997	12,997	1,614	1,028	12,960
Balances	(5,510,983)	(5,179,722)	(4,800,513)	(4,046,555)	(3,566,493)	(3,050,497)	(5,510,983)	(4,046,555)
Additional Paid-In Capital
Balances	1,204,134	1,194,079	1,212,566	1,213,481	1,204,023	1,218,933	1,212,566	1,218,933
Noncontrolling investors, net					630
Equity-based compensation	10,760	10,055	(18,487)	6,466	8,828	(14,910)
Balances	1,214,894	1,204,134	1,194,079	1,219,947	1,213,481	1,204,023	1,214,894	1,219,947
Retained Earnings
Balances	12,681,894	11,940,621	11,375,765	9,945,710	8,800,883	7,761,417	11,375,765	7,761,417
Dividends declared	(69,483)	(70,694)	(72,316)	(60,031)	(62,088)	(64,344)
Noncontrolling investors, net					(2,495)
Equity-based compensation	(138)	(140)	(138)	(141)	(144)	(121)
Net income	577,195	812,107	637,310	914,325	1,209,554	1,103,931
Balances	13,189,468	12,681,894	11,940,621	10,799,863	9,945,710	8,800,883	13,189,468	10,799,863
Accumulated Other Comprehensive Income
Balances	1,027	1,800	889	(4,999)	9,296	(2,091)	889	(2,091)
Other comprehensive loss, net of tax	(1,521)	(773)	911	2,251	(14,295)	11,387
Balances	(494)	1,027	1,800	(2,748)	(4,999)	9,296	(494)	(2,748)
Noncontrolling Interests
Balances	(214,226)	(216,419)	(216,055)	(207,761)	(214,094)	(195,884)	(216,055)	(195,884)
Noncontrolling investors, net		(1,877)	(7,387)	(4,743)	1,235	(21,633)
Noncontrolling investors, net	5,183
Net income	2,587	4,070	7,023	4,150	5,098	3,423
Balances	(206,456)	(214,226)	(216,419)	(208,354)	(207,761)	(214,094)	(206,456)	(208,354)
Redeemable Noncontrolling Interest
Balances	171,212	186,205	181,503	168,303	227,914	211,414	181,503	211,414
Noncontrolling investors, net		(14,993)	4,702	4,100	(59,611)	16,500
Balances	$ 171,212	$ 171,212	$ 186,205	$ 172,403	$ 168,303	$ 227,914	$ 171,212	$ 172,403