CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury stock	Total
Balance at Dec. 31, 2021	$ 6,400	$ 4,649,420	$ 7,809,549	$ (69,165)	$ (5,829,253)	$ 6,566,951
Balance (in shares) at Dec. 31, 2021	1,280,086				(221,440)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Stock-based compensation		16,175				16,175
Stock options/awards	$ 6	4,504				4,510
Stock options/awards (in shares)	970
Unrealized gain (loss), net on available-for-sale securities				(4,059)		(4,059)
Repurchase of common stock					$ (12,187)	(12,187)
Repurchase of common stock (in shares)					(332)
Foreign currency translation				1,079		1,079
Net income			294,203			294,203
Balance at Mar. 31, 2022	$ 6,406	4,670,099	8,103,752	(72,145)	$ (5,841,440)	6,866,672
Balance (in shares) at Mar. 31, 2022	1,281,056				(221,772)
Balance at Dec. 31, 2021	$ 6,400	4,649,420	7,809,549	(69,165)	$ (5,829,253)	6,566,951
Balance (in shares) at Dec. 31, 2021	1,280,086				(221,440)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Unrealized gain (loss), net on available-for-sale securities						(7,840)
Net gains on commodity derivatives						0
Net income						889,950
Balance at Sep. 30, 2022	$ 6,413	4,732,933	8,699,499	(224,454)	$ (6,398,631)	6,815,760
Balance (in shares) at Sep. 30, 2022	1,282,490				(234,560)
Balance at Mar. 31, 2022	$ 6,406	4,670,099	8,103,752	(72,145)	$ (5,841,440)	6,866,672
Balance (in shares) at Mar. 31, 2022	1,281,056				(221,772)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Stock-based compensation		16,157				16,157
Stock options/awards	$ 4	18,108				18,112
Stock options/awards (in shares)	832
Unrealized gain (loss), net on available-for-sale securities				(1,105)		(1,105)
Repurchase of common stock					$ (284,311)	(284,311)
Repurchase of common stock (in shares)					(6,572)
Foreign currency translation				(79,707)		(79,707)
Net income			273,360			273,360
Balance at Jun. 30, 2022	$ 6,410	4,704,364	8,377,112	(152,957)	$ (6,125,751)	6,809,178
Balance (in shares) at Jun. 30, 2022	1,281,888				(228,344)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Stock-based compensation		16,436				16,436
Stock options/awards	$ 3	12,133				12,136
Stock options/awards (in shares)	602
Unrealized gain (loss), net on available-for-sale securities				(2,675)		(2,675)
Repurchase of common stock					$ (272,880)	(272,880)
Repurchase of common stock (in shares)					(6,216)
Foreign currency translation				(68,822)		(68,822)
Net gains on commodity derivatives						0
Net income			322,387			322,387
Balance at Sep. 30, 2022	$ 6,413	4,732,933	8,699,499	(224,454)	$ (6,398,631)	6,815,760
Balance (in shares) at Sep. 30, 2022	1,282,490				(234,560)
Balance at Dec. 31, 2022	$ 6,418	4,776,804	9,001,173	(159,073)	$ (6,600,281)	7,025,041
Balance (in shares) at Dec. 31, 2022	1,283,688				(239,088)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Stock-based compensation		15,743				15,743
Stock options/awards	$ 19	36,329				36,348
Stock options/awards (in shares)	3,704
Unrealized gain (loss), net on available-for-sale securities				3,181		3,181
Repurchase of common stock					$ (90,378)	(90,378)
Repurchase of common stock (in shares)					(1,688)
Retirement of treasury stock	$ (850)	425	(4,692,425)		$ 4,692,850
Retirement of treasury stock (in shares)	(170,000)				170,000
Foreign currency translation				7,981		7,981
Net income			397,444			397,444
Balance at Mar. 31, 2023	$ 5,587	4,829,301	4,706,192	(147,911)	$ (1,997,809)	7,395,360
Balance (in shares) at Mar. 31, 2023	1,117,392				(70,776)
Balance at Dec. 31, 2022	$ 6,418	4,776,804	9,001,173	(159,073)	$ (6,600,281)	7,025,041
Balance (in shares) at Dec. 31, 2022	1,283,688				(239,088)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Unrealized gain (loss), net on available-for-sale securities						3,680
Net gains on commodity derivatives						3,434
Net income						1,264,009
Balance at Sep. 30, 2023						7,873,149
Balance at Mar. 31, 2023	$ 5,587	4,829,301	4,706,192	(147,911)	$ (1,997,809)	7,395,360
Balance (in shares) at Mar. 31, 2023	1,117,392				(70,776)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Stock-based compensation		17,176				17,176
Stock options/awards	$ 4	23,314				23,318
Stock options/awards (in shares)	877
Unrealized gain (loss), net on available-for-sale securities				(773)		(773)
Repurchase of common stock					$ (447)	(447)
Repurchase of common stock (in shares)					(8)
Foreign currency translation				(5,775)		(5,775)
Net gains on commodity derivatives				(1,266)		(1,266)
Net income			413,871			413,871
Balance at Jun. 30, 2023	$ 5,591	4,869,791	$ 5,120,063	(155,725)	$ (1,998,256)	7,841,464
Balance (in shares) at Jun. 30, 2023	1,118,269				(70,784)
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Stock options/awards		17,605				17,605
Unrealized gain (loss), net on available-for-sale securities		$ 5,893
Repurchase of common stock				1,272		1,272
Foreign currency translation						(402,200)
Net gains on commodity derivatives				(48,280)
Net income				$ 4,700
Balance at Sep. 30, 2023						$ 7,873,149