Stockholders' Deficit - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended						3 Months Ended							4 Months Ended		9 Months Ended
	Jul. 31, 2023 USD ($) $ / shares	Feb. 28, 2023 shares	Dec. 31, 2022 USD ($) $ / shares shares	Aug. 31, 2022 shares	May 31, 2022 USD ($) shares	Feb. 28, 2022 USD ($)	Dec. 31, 2023 USD ($) vote $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Jun. 30, 2022 shares	Mar. 31, 2022 shares	Aug. 31, 2022 $ / shares shares	May 31, 2022 $ / shares shares	Dec. 31, 2023 USD ($) vote $ / shares	Dec. 31, 2022 USD ($) $ / shares	Mar. 31, 2023 USD ($)
Accelerated Share Repurchases [Line Items]
Number of votes per share of common stock permitted on proposals presented to stockholders (vote) | vote							1									1
Dividends declared per common share (in dollars per share) | $ / shares	$ 0.62						$ 0.62	$ 0.54		$ 0.54						$ 1.78	$ 1.55
Other accrued liabilities							$ 4,400									$ 4,400		$ 4,200
Excise taxes							8									20
Shares repurchased							868			$ 1,976						2,381	$ 3,500
Authorized repurchase amount (up to)	$ 6,000
Authorized amount available for future repurchases							$ 7,300									7,300
Accelerated Share Repurchase
Accelerated Share Repurchases [Line Items]
Average price of shares repurchased (in usd per share) | $ / shares			$ 369.20											$ 321.05	$ 295.16
Shares repurchased			$ 972		$ 1,000	$ 1,500
Share repurchases (in shares) | shares			2.6											3.1	5.1
Accelerated Share Repurchase, Initial Share Settlement
Accelerated Share Repurchases [Line Items]
Common stock repurchased (in shares) | shares			2.2		2.6								4.8
Accelerated Share Repurchase, Completion Of Program
Accelerated Share Repurchases [Line Items]
Common stock repurchased (in shares) | shares		0.4		0.5	0.3
Open Market Share Repurchase Transactions
Accelerated Share Repurchases [Line Items]
Common stock repurchased (in shares) | shares							1.9	2.0	1.8	2.7	1.5	0.0
Shares repurchased							$ 868	$ 840	$ 673	$ 1,000	$ 524
Average price of shares repurchased (in usd per share) | $ / shares							$ 457.16	$ 422.39	$ 379.14	$ 370.13	$ 355.75
Other accrued liabilities							$ 41									$ 41		$ 27