Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Balances	$ 7,380,587	$ 6,750,260	$ 6,108,757	$ 4,853,938	$ 4,571,583	$ 4,189,612	$ 6,108,757	$ 4,189,612
Dividends declared	(60,031)	(62,088)	(64,344)	(51,942)	(53,380)	(54,917)
Noncontrolling investors, net	(4,743)	(630)	(21,633)	(15,176)	(18,879)	(9,905)
Share repurchases	(481,676)	(517,024)	(389,190)	(337,616)	(393,198)
Equity-based compensation	7,939	9,712	(2,071)	8,518	8,932	4,273
Net income	918,475	1,214,652	1,107,354	1,000,159	712,203	438,755	3,240,481	2,151,117
Other comprehensive income, net of tax	2,251	(14,295)	11,387	(21,761)	26,677	3,765	(657)	8,681
Balances	7,762,802	7,380,587	6,750,260	5,436,120	4,853,938	4,571,583	7,762,802	5,436,120
Common Stock
Balances	649	649	649	648	648	648	649	648
Balances	649	649	649	648	648	648	649	648
Treasury Stock
Balances	(3,566,493)	(3,050,497)	(2,674,267)	(2,006,895)	(1,614,866)	(1,623,747)	(2,674,267)	(1,623,747)
Share repurchases	(481,676)	(517,024)	(389,190)	(337,616)	(393,198)
Equity-based compensation	1,614	1,028	12,960	34	1,169	8,881
Balances	(4,046,555)	(3,566,493)	(3,050,497)	(2,344,477)	(2,006,895)	(1,614,866)	(4,046,555)	(2,344,477)
Additional Paid-In Capital
Balances	1,213,481	1,204,023	1,218,933	1,210,833	1,202,945	1,207,392	1,218,933	1,207,392
Noncontrolling investors, net		630
Equity-based compensation	6,466	8,828	(14,910)	8,605	7,888	(4,447)
Balances	1,219,947	1,213,481	1,204,023	1,219,438	1,210,833	1,202,945	1,219,947	1,219,438
Retained Earnings
Balances	9,945,710	8,800,883	7,761,417	5,783,184	5,134,398	4,758,969	7,761,417	4,758,969
Dividends declared	(60,031)	(62,088)	(64,344)	(51,942)	(53,380)	(54,917)
Noncontrolling investors, net		(2,495)		(150)
Equity-based compensation	(141)	(144)	(121)	(121)	(125)	(161)
Net income	914,325	1,209,554	1,103,931	990,763	702,291	430,507
Balances	10,799,863	9,945,710	8,800,883	6,721,734	5,783,184	5,134,398	10,799,863	6,721,734
Accumulated Other Comprehensive Income (Loss)
Balances	(4,999)	9,296	(2,091)	32,344	5,667	1,902	(2,091)	1,902
Other comprehensive income, net of tax	2,251	(14,295)	11,387	(21,761)	26,677	3,765
Balances	(2,748)	(4,999)	9,296	10,583	32,344	5,667	(2,748)	10,583
Noncontrolling Interests
Balances	(207,761)	(214,094)	(195,884)	(166,176)	(157,209)	(155,552)	(195,884)	(155,552)
Noncontrolling investors, net	(4,743)	1,235	(21,633)	(15,026)	(18,879)	(9,905)
Net income	4,150	5,098	3,423	9,396	9,912	8,248
Balances	(208,354)	(207,761)	(214,094)	(171,806)	(166,176)	(157,209)	(208,354)	(171,806)
Redeemable Noncontrolling Interest
Balances	168,303	227,914	211,414	176,414	163,614	158,614	211,414	158,614
Noncontrolling investors, net		(59,611)
Noncontrolling investors, net	4,100		16,500	10,400	12,800	5,000
Balances	$ 172,403	$ 168,303	$ 227,914	$ 186,814	$ 176,414	$ 163,614	$ 172,403	$ 186,814