Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share
Antidilutive common share equivalents excluded from computation of earnings per share amount (in shares)	0	0	0	0
Net Income (Numerator)
Basic earnings per share (in dollars)	$ 914,325	$ 990,763	$ 3,227,810	$ 2,123,561
Diluted earnings per share (in dollars)	$ 914,325	$ 990,763	$ 3,227,810	$ 2,123,561
Weighted Average Shares (Denominator)
Basic earnings per share (in shares)	180,264,000	202,450,000	186,288,000	207,704,000
Dilutive common share equivalents (in shares)	1,349,000	1,717,000	1,243,000	1,518,000
Diluted earnings per share (in shares)	181,613,000	204,167,000	187,531,000	209,222,000
Per Share Amount
Basic (in dollars per share)	$ 5.07	$ 4.89	$ 17.33	$ 10.22
Diluted (in dollars per share)	$ 5.03	$ 4.85	$ 17.21	$ 10.15