Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Shares	Additional Paid-in Capital	Treasury Shares	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2021		242,778
Beginning balance at Dec. 31, 2021	$ 22,837	$ 2	$ 19,123	$ (248)	$ 3,960
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(922)				(922)
Conversion premium
Exercise of stock options and employee stock purchases (in shares)		6
Exercise of stock options and employee share purchases	1			1
Purchases of treasury stock (in shares)		(1,175)
Purchases of treasury shares	(276)			(276)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		350
Vested compensation awards, net	0
Compensation costs included in net income	19		19
Net income	2,009				2,009
Ending balance (in shares) at Mar. 31, 2022		241,959
Ending balance at Mar. 31, 2022	23,668	$ 2	19,142	(523)	5,047
Beginning balance (in shares) at Dec. 31, 2021		242,778
Beginning balance at Dec. 31, 2021	22,837	$ 2	19,123	(248)	3,960
Share-based compensation:
Net income	6,364
Ending balance (in shares) at Sep. 30, 2022		237,736
Ending balance at Sep. 30, 2022	22,949	$ 2	18,911	(1,525)	5,561
Beginning balance (in shares) at Mar. 31, 2022		241,959
Beginning balance at Mar. 31, 2022	23,668	$ 2	19,142	(523)	5,047
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(1,788)				(1,788)
Conversion premium
Conversion premium	(2)		(2)
Capped call proceeds	26		26
Issuance fees and deferred taxes	(6)		(6)
Purchases of treasury stock (in shares)		(2,126)
Purchases of treasury shares	(499)			(499)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		5
Vested compensation awards, net	0
Compensation costs included in net income	20		20
Net income	2,371				2,371
Ending balance (in shares) at Jun. 30, 2022		239,838
Ending balance at Jun. 30, 2022	23,790	$ 2	19,180	(1,022)	5,630
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(2,053)				(2,053)
Conversion premium
Conversion premium	(319)		(319)
Capped call proceeds	45		45
Issuance fees and deferred taxes	(13)		(13)
Employee stock purchases (in shares)		41
Employee stock purchases	6		(2)	8
Purchases of treasury stock (in shares)		(2,338)
Purchases of treasury shares	(511)			(511)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		195
Vested compensation awards, net	0
Compensation costs included in net income	20		20
Net income	1,984				1,984
Ending balance (in shares) at Sep. 30, 2022		237,736
Ending balance at Sep. 30, 2022	22,949	$ 2	18,911	(1,525)	5,561
Beginning balance (in shares) at Dec. 31, 2022		236,036
Beginning balance at Dec. 31, 2022	22,541	$ 2	18,779	(1,925)	5,685
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(1,314)				(1,314)
Conversion premium
Conversion premium	(138)		(138)
Capped call proceeds	31		31
Issuance fees and deferred taxes	(7)		(7)
Purchases of treasury stock (in shares)		(2,499)
Purchases of treasury shares	(520)			(520)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		199
Vested compensation awards, net	0
Compensation costs included in net income	23		23
Net income	1,222				1,222
Ending balance (in shares) at Mar. 31, 2023		233,736
Ending balance at Mar. 31, 2023	21,838	$ 2	18,688	(2,445)	5,593
Beginning balance (in shares) at Dec. 31, 2022		236,036
Beginning balance at Dec. 31, 2022	22,541	$ 2	18,779	(1,925)	5,685
Share-based compensation:
Net income	3,625
Ending balance (in shares) at Sep. 30, 2023		233,309
Ending balance at Sep. 30, 2023	22,719	$ 2	18,506	(2,572)	6,783
Beginning balance (in shares) at Mar. 31, 2023		233,736
Beginning balance at Mar. 31, 2023	21,838	$ 2	18,688	(2,445)	5,593
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(784)				(784)
Conversion premium
Conversion premium	(77)		(77)
Capped call proceeds	27		27
Issuance fees and deferred taxes	(7)		(7)
Purchases of treasury stock (in shares)		(602)
Purchases of treasury shares	(126)			(126)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		6
Vested compensation awards, net	0
Compensation costs included in net income	27		27
Net income	1,102				1,102
Ending balance (in shares) at Jun. 30, 2023		233,140
Ending balance at Jun. 30, 2023	22,000	$ 2	18,658	(2,571)	5,911
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(429)				(429)
Conversion premium
Conversion premium	(207)		(207)
Capped call proceeds	46		46
Issuance fees and deferred taxes	(10)		(10)
Employee stock purchases (in shares)		39
Employee stock purchases	8		(1)	9
Purchases of treasury stock (in shares)		(42)
Purchases of treasury shares	(10)			(10)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		172
Vested compensation awards, net	0
Compensation costs included in net income	20		20
Net income	1,301				1,301
Ending balance (in shares) at Sep. 30, 2023		233,309
Ending balance at Sep. 30, 2023	$ 22,719	$ 2	$ 18,506	$ (2,572)	$ 6,783