Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock, Value	$ 0
Treasury Stock, Common, Shares	0
Balance at Dec. 31, 2021	$ 20,492,700	$ 12,100	$ 18,536,100	$ 3,688,800	$ (1,744,300)
Balance (in shares) at Dec. 31, 2021		1,209,507,463
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	1,067,400
Other comprehensive loss, net of tax	(2,014,800)				(2,014,800)
Issuance of restricted stock, net of shares withheld (in shares)		2,911,515
Issuance of restricted stock and stock options exercised, net	0		0
Taxes related to the net share settlement of equity awards	(8,600)		(8,600)
Share-based compensation expense	86,800		86,800
Payments for Repurchase of Common Stock	0
Stock Issued During Period, Shares, New Issues		234,487
Stock Issued During Period, Value, New Issues	2,500		2,500
Cash dividends declared, $0.36 per common share	(443,700)			(443,700)
Balance at Sep. 30, 2022	$ 19,182,300	$ 12,100	18,616,800	4,312,500	(3,759,100)
Balance (in shares) at Sep. 30, 2022		1,212,653,465
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid (in dollars per share)	$ 0.36
Treasury Stock, Value	$ 0
Treasury Stock, Common, Shares	0
Balance at Jun. 30, 2022	$ 19,805,400	$ 12,100	18,585,700	4,106,800	(2,899,200)
Balance (in shares) at Jun. 30, 2022		1,212,447,457
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	354,300
Other comprehensive loss, net of tax	(859,900)				(859,900)
Issuance of restricted stock, net of shares withheld (in shares)		31,203
Issuance of restricted stock and stock options exercised, net	0		0
Share-Based Payment Arrangement, Expense, Tax Benefit	200		200
Share-based compensation expense	29,100		29,100
Stock Issued During Period, Shares, New Issues		174,805
Stock Issued During Period, Value, New Issues	1,800		1,800
Cash dividends declared, $0.36 per common share	(148,600)			(148,600)
Balance at Sep. 30, 2022	$ 19,182,300	$ 12,100	18,616,800	4,312,500	(3,759,100)
Balance (in shares) at Sep. 30, 2022		1,212,653,465
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid (in dollars per share)	$ 0.12
Treasury Stock, Value	$ 0
Treasury Stock, Common, Shares	0
Treasury Stock, Value	$ 0
Treasury Stock, Common, Shares	0
Balance at Dec. 31, 2022	$ 21,072,300	$ 12,100	18,645,800	5,175,600	(2,761,200)
Balance (in shares) at Dec. 31, 2022		1,213,793,231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	820,300
Other comprehensive loss, net of tax	(447,300)				(447,300)
Issuance of restricted stock, net of shares withheld (in shares)		6,864,535
Issuance of restricted stock and stock options exercised, net	3,800	$ 100	3,700
Taxes related to the net share settlement of equity awards	(22,200)		(22,200)
Share-based compensation expense	124,900		124,900
Common stock repurchase	(251,800)					$ (251,800)
Payments for Repurchase of Common Stock	$ 250,000
Stock Issued During Period, Shares, New Issues		241,667
Treasury Stock, Shares, Acquired	21,200,000					21,239,521
Stock Issued During Period, Value, New Issues	$ 2,400		2,400
Cash dividends declared, $0.36 per common share	(442,900)			(442,900)
Other Additional Capital	6,100
Balance at Sep. 30, 2023	$ 20,865,600	$ 12,200	18,760,700	5,553,000	(3,208,500)
Balance (in shares) at Sep. 30, 2023		1,220,899,433
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid (in dollars per share)	$ 0.36
Treasury Stock, Value	$ (251,800)
Treasury Stock, Common, Shares	21,239,521
Balance at Jun. 30, 2023	$ 20,843,300	$ 12,200	18,719,400	5,369,100	(3,005,600)
Balance (in shares) at Jun. 30, 2023		1,220,385,566
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	331,600
Other comprehensive loss, net of tax	(202,900)				(202,900)
Issuance of restricted stock, net of shares withheld (in shares)		441,962
Issuance of restricted stock and stock options exercised, net	0	$ 0	0
Taxes related to the net share settlement of equity awards	(2,500)		(2,500)
Share-based compensation expense	43,100		43,100
Stock Issued During Period, Shares, New Issues		71,905
Stock Issued During Period, Value, New Issues	700		700
Cash dividends declared, $0.36 per common share	(147,700)			(147,700)
Balance at Sep. 30, 2023	$ 20,865,600	$ 12,200	$ 18,760,700	$ 5,553,000	$ (3,208,500)
Balance (in shares) at Sep. 30, 2023		1,220,899,433
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid (in dollars per share)	$ 0.12
Treasury Stock, Value	$ (251,800)
Treasury Stock, Common, Shares	21,239,521