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Debt - Additional Information (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) $ / shares $ / € shares	Dec. 31, 2023 USD ($) $ / €
Debt Instrument [Line Items]
Aggregate principal amount	$ 31,788	$ 31,929
Exchange rate | $ / €	1.0354	1.1039
Debt Fair Value Adjustments	$ 102	$ 187
Commercial paper notes
Debt Instrument [Line Items]
Weighted average interest rate	4.60%	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	$ 518	$ 552
Change to debt as a result of changes in exchange rate	$ (25)	9
Trust I Preferred Securities, 4.75%, due March 2028(d) | Capital Trust I
Debt Instrument [Line Items]
Interest rate, stated percentage	4.75%
Aggregate principal amount	$ 221	$ 221
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(d) | Capital Trust I | Class P
Debt Instrument [Line Items]
Conversion rate	0.7197

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Fair value adjustments to debt as of the balance sheet date including fair value purchase accounting adjustments to debt and fair value of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet as well as unamortized portions of proceeds received from early termination of interest rate swap agreements.

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