Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Balances	$ 6,750,260	$ 6,108,757	$ 4,571,583	$ 4,189,612	$ 6,108,757	$ 4,189,612
Dividends declared	(62,088)	(64,344)	(53,380)	(54,917)
Noncontrolling investors, net	(630)	(21,633)	(18,879)	(9,905)
Share repurchases	(517,024)	(389,190)	(393,198)
Equity-based compensation	9,712	(2,071)	8,932	4,273
Net income	1,214,652	1,107,354	712,203	438,755	2,322,006	1,150,958
Other comprehensive income, net of tax	(14,295)	11,387	26,677	3,765	(2,908)	30,442
Balances	7,380,587	6,750,260	4,853,938	4,571,583	7,380,587	4,853,938
Common Stock
Balances	649	649	648	648	649	648
Balances	649	649	648	648	649	648
Treasury Stock
Balances	(3,050,497)	(2,674,267)	(1,614,866)	(1,623,747)	(2,674,267)	(1,623,747)
Share repurchases	(517,024)	(389,190)	(393,198)
Equity-based compensation	1,028	12,960	1,169	8,881
Balances	(3,566,493)	(3,050,497)	(2,006,895)	(1,614,866)	(3,566,493)	(2,006,895)
Additional Paid-In Capital
Balances	1,204,023	1,218,933	1,202,945	1,207,392	1,218,933	1,207,392
Noncontrolling investors, net	630
Equity-based compensation	8,828	(14,910)	7,888	(4,447)
Balances	1,213,481	1,204,023	1,210,833	1,202,945	1,213,481	1,210,833
Retained Earnings
Balances	8,800,883	7,761,417	5,134,398	4,758,969	7,761,417	4,758,969
Dividends declared	(62,088)	(64,344)	(53,380)	(54,917)
Noncontrolling investors, net	(2,495)
Equity-based compensation	(144)	(121)	(125)	(161)
Net income	1,209,554	1,103,931	702,291	430,507
Balances	9,945,710	8,800,883	5,783,184	5,134,398	9,945,710	5,783,184
Accumulated Other Comprehensive Income (Loss)
Balances	9,296	(2,091)	5,667	1,902	(2,091)	1,902
Other comprehensive income, net of tax	(14,295)	11,387	26,677	3,765
Balances	(4,999)	9,296	32,344	5,667	(4,999)	32,344
Noncontrolling Interests
Balances	(214,094)	(195,884)	(157,209)	(155,552)	(195,884)	(155,552)
Noncontrolling investors, net	1,235	(21,633)	(18,879)	(9,905)
Net income	5,098	3,423	9,912	8,248
Balances	(207,761)	(214,094)	(166,176)	(157,209)	(207,761)	(166,176)
Redeemable Noncontrolling Interest
Balances	227,914	211,414	163,614	158,614	211,414	158,614
Noncontrolling investors, net	(59,611)	16,500	12,800	5,000
Balances	$ 168,303	$ 227,914	$ 176,414	$ 163,614	$ 168,303	$ 176,414