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Debt - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2024	May 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total fair value of debt	$ 89,800		$ 92,200
Unused irrevocable standby letters of credit and bank guarantees	288
Commercial paper
Debt Instrument [Line Items]
Long-term debt, gross	0		0
Revolving Credit Facilities
Debt Instrument [Line Items]
Long-term debt, gross	$ 0		$ 0
Revolving Credit Facilities | Line of Credit
Debt Instrument [Line Items]
Borrowing margin for LIBOR based borrowings	0.875%
Revolving Credit Facilities | Line of Credit | Revolving Credit Facility Due May 17, 2029
Debt Instrument [Line Items]
Current borrowing capacity		$ 11,800
Maximum borrowing capacity of revolving credit facilities		$ 14,800
Amounts available under revolving credit facilities	$ 11,800

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