Statement of Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		9 Months Ended
	Sep. 25, 2020	Jun. 19, 2020	Mar. 20, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Settlement of warrants (shares)					200,000
Beginning balance				$ (93,596)	$ 508,022	$ 837,656	$ 551,519
Stock-based compensation expense				85,169	68,969	228,854	202,523
Temporary equity reclassification							8,110
Common stock issued under employee stock purchase plan				23,600	20,455	44,635	39,471
Stock repurchases, net					(103,905)	(199,903)	(353,904)
Restricted shares turned in for tax withholding				(3,692)	(4,242)	(104,848)	(74,794)
Cash dividends declared				(43,046)	(45,373)	(129,108)	(137,224)
Accelerated stock repurchase program						(1,000,000)
Other comprehensive income, net of tax				2,138	(1,872)	800	1,672
Net income				98,227	270,857	392,355	474,700
Ending balance				$ 68,800	$ 712,911	$ 68,800	$ 712,911
Beginning balance, treasury shares (in shares)						(188,693,000)
Restricted shares turned in for tax withholding (in shares)				(25,826)	(44,829)	(765,426)	(742,946)
Ending balance, treasury shares (in shares)				(198,568,000)		(198,568,000)
Cash dividend paid (in dollars per share)	$ 0.35	$ 0.35	$ 0.35
Cumulative Effect, Period of Adoption, Adjustment [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance						$ (1,641)	$ 838
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)				321,210,000	316,969,000	318,760,000	309,761,000
Shares issued under stock compensation plans (shares)				109,000	123,000	2,314,000	2,167,000
Common stock issued under employee stock purchase plan (shares)				238,000	255,000	483,000	471,000
Shares issued upon conversion of debt (shares)							4,950,000
Settlement of warrants (shares)					202,000		202,000
Other (in shares)							(2,000)
Ending balance (in shares)				321,557,000	317,549,000	321,557,000	317,549,000
Beginning balance				$ 321	$ 317	$ 319	$ 310
Shares issued under stock-based compensation plans						2	2
Common stock issued under employee stock purchase plan				1	1	1	1
Settlement of convertible notes and hedges							5
Ending balance				322	318	322	318
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				6,216,838	6,078,960	6,249,065	5,404,500
Shares issued under stock-based compensation plans						(2)	(2)
Stock-based compensation expense				85,169	68,969	228,854	202,523
Temporary equity reclassification							8,110
Common stock issued under employee stock purchase plan				23,599	20,454	44,634	39,470
Settlement of convertible notes and hedges							509,519
Accelerated stock repurchase program				200,000		0
Other				1,756	2,194	4,811	6,457
Ending balance				6,527,362	6,170,577	6,527,362	6,170,577
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				4,863,515	4,277,586	4,660,145	4,169,019
Cash dividends declared				(43,046)	(45,373)	(129,108)	(137,224)
Other				(1,756)	(2,194)	(4,811)	(6,457)
Net income				98,227	270,857	392,355	474,700
Ending balance				4,916,940	4,500,876	4,916,940	4,500,876
Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance						(1,641)	838
Accumulated Other Comprehensive Loss [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				(6,465)	(4,610)	(5,127)	(8,154)
Other comprehensive income, net of tax				2,138	(1,872)	800	1,672
Ending balance				(4,327)	(6,482)	(4,327)	(6,482)
Common Stock in Treasury [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				(11,167,805)	(9,844,231)	(10,066,746)	(9,014,156)
Stock repurchases, net					(103,905)	(199,903)	(353,904)
Restricted shares turned in for tax withholding				(3,692)	(4,242)	(104,848)	(74,794)
Settlement of convertible notes and hedges							(509,524)
Accelerated stock repurchase program				(200,000)		(1,000,000)
Ending balance				$ (11,371,497)	$ (9,952,378)	$ (11,371,497)	$ (9,952,378)
Beginning balance, treasury shares (in shares)				(197,693,000)	(186,486,000)	(188,693,000)	(178,327,000)
Stock repurchases net (in shares)					(1,130,000)	(1,732,000)	(3,641,000)
Restricted shares turned in for tax withholding (in shares)				(26,000)	(45,000)	(765,000)	(743,000)
Settlement of convertible notes and hedges (in shares)							(4,950,000)
Accelerated stock repurchases (in shares)				(849,000)		(7,378,000)
Ending balance, treasury shares (in shares)				(198,568,000)	(187,661,000)	(198,568,000)	(187,661,000)