Statement of Stockholders Equity Statement - USD ($) $ in Thousands, shares in Millions	Total	2021 Stock Repurchase Plan [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Common stock, shares outstanding			165.3
Stockholders' Equity Attributable to Parent	$ 5,297,100		$ 41,300	$ (1,700)	$ 79,600	$ 5,185,800	$ (7,900)
Treasury Stock, Shares				0.0
Net income	399,900					399,900
StockIssuedDuringPeriodSharesShareBasedCompensationNetofRelatedTaxes(inshares)			0.9	0.5
StockIssuedDuringPeriodValueShareBasedCompensationNetofRelatedTaxes	(46,100)		$ 200	$ (80,100)	33,800
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	42,000				42,000
Stock Repurchased During Period, Value	269,400		$ 400	$ 269,400	(400)
Stock Repurchased During Period, Shares			1.7	1.7
Dividends	(92,500)					(92,500)
Other Comprehensive Income (Loss), Net of Tax	(3,200)						3,200
Common stock, shares outstanding			164.5
Stockholders' Equity Attributable to Parent	$ 5,334,200		$ 41,100	$ (351,200)	155,800	5,493,200	(4,700)
Treasury Stock, Shares				2.2
Common stock, shares outstanding	160.2		160.2
Stockholders' Equity Attributable to Parent	$ 5,469,000		$ 40,000	$ 0	11,900	5,421,900	(4,800)
Treasury Stock, Shares				0.0
Net income	309,400					309,400
StockIssuedDuringPeriodSharesShareBasedCompensationNetofRelatedTaxes(inshares)			0.7	0.3
StockIssuedDuringPeriodValueShareBasedCompensationNetofRelatedTaxes	(11,700)		$ 200	$ (31,900)	20,000
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	49,700				49,700
Stock Repurchased and Retired During Period, Value						(120,000)
Stock Repurchased During Period, Value	166,300		$ 500	$ (31,900)	77,700
Stock Repurchased During Period, Shares			1.8	(0.3)
Dividends	(99,400)					(99,400)
Other Comprehensive Income (Loss), Net of Tax	$ 800						(800)
Common stock, shares outstanding	159.1		159.1
Stockholders' Equity Attributable to Parent	$ 5,549,900		$ 39,700	$ 0	$ 3,900	$ 5,511,900	$ (5,600)
Treasury Stock, Shares				0.0
Authorized amount of stock for repurchase		$ 2,000,000
Remaining amount authorized fro stock repurchase	$ 947,000