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Debt - Additional Information (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares $ / € shares	Dec. 31, 2022 USD ($) $ / €
Debt Instrument [Line Items]
Aggregate principal amount	$ 31,929	$ 31,673
Exchange rate | $ / €	1.1039	1.0705
Debt Fair Value Adjustments	$ 187	$ 115
Commercial paper notes
Debt Instrument [Line Items]
Weighted average interest rate	5.68%
Capital Trust I
Debt Instrument [Line Items]
Ownership percentage	100.00%
Senior Notes
Debt Instrument [Line Items]
Redemption Price	100.00%
2.250% Senior Notes due March 2027 | Senior Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%
Aggregate principal amount	$ 552	535
Change to debt as a result of changes in exchange rate	$ 9	(8)
Trust I Preferred Securities, 4.75%, due March 2028(e) | Capital Trust I
Debt Instrument [Line Items]
Interest rate, stated percentage	4.75%
Aggregate principal amount	$ 221	$ 220
Trust Convertible Preferred Securities Outstanding | shares	4.4
Liquidation preference | $ / shares	$ 50
Conversion price | $ / shares	$ 25.18
Trust I Preferred Securities, 4.75%, due March 2028(e) | Capital Trust I | Class P
Debt Instrument [Line Items]
Conversion rate	0.7197

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