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, 2020		164,477
Beginning balance at Dec. 31, 2020	$ 11,569	$ 2	$ 9,323	$ (1,234)	$ 3,478
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(1,658)				(1,658)
Conversion premium
Capped call proceeds	(202)		(230)		28
Issuance fees and deferred taxes	44		50		(6)
Exercise of stock options and employee stock purchases (in shares)		134
Exercise of stock options and employee share purchases	13		(4)	17
Purchases of treasury stock (in shares)		(1,517)
Purchases of treasury shares	(269)			(269)
Shares issued or reissued for acquisition (in shares)		78,842
Shares issued or reissued for acquisitions	11,116		9,878	1,238
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		842
Vested compensation awards, net	0
Compensation costs included in net income	73		73
Compensation costs included in net income associated with acquisitions	33		33
Net income	2,118				2,118
Ending balance (in shares) at Dec. 31, 2021		242,778
Ending balance at Dec. 31, 2021	22,837	$ 2	19,123	(248)	3,960
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(6,120)				(6,120)
Conversion premium
Conversion premium	(496)		(496)
Capped call proceeds	103		103
Issuance fees and deferred taxes	(26)		(26)
Exercise of stock options and employee stock purchases (in shares)		47
Exercise of stock options and employee share purchases	7		(3)	10
Purchases of treasury stock (in shares)		(7,348)
Purchases of treasury shares	(1,687)			(1,687)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		559
Vested compensation awards, net	0
Compensation costs included in net income	78		78
Net income	7,845				7,845
Ending balance (in shares) at Dec. 31, 2022		236,036
Ending balance at Dec. 31, 2022	22,541	$ 2	18,779	(1,925)	5,685
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	(3,299)				(3,299)
Conversion premium
Conversion premium	(566)		(566)
Capped call proceeds	132		132
Issuance fees and deferred taxes	(31)		(31)
Employee stock purchases (in shares)		39
Employee stock purchases	8		(1)	9
Purchases of treasury stock (in shares)		(3,343)
Purchases of treasury shares	(701)			(701)
Share-based compensation:
Vested compensation awards, net or issued awards (in shares)		891
Vested compensation awards, net	0
Compensation costs included in net income	193		193
Net income	4,894				4,894
Ending balance (in shares) at Dec. 31, 2023		233,623
Ending balance at Dec. 31, 2023	$ 23,171	$ 2	$ 18,506	$ (2,617)	$ 7,280