Debt and Financing Arrangements (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Fair value of long-term debt, excluding current portion	$ 7,200	$ 7,100
Long-term debt	7,596	7,580
Fair value of trade receivables derecognized	$ 2,100	$ 2,000
Weighted average interest rate on short term borrowings (as a percent)	4.50%	4.70%
Line of Credit
Debt Instrument [Line Items]
Lines of credit	$ 12,400	$ 13,000
Unused lines of credit	7,600	$ 9,100
Accounts Receivable Securitization Facility
Debt Instrument [Line Items]
Lines of credit	2,900
Commercial Paper
Debt Instrument [Line Items]
Lines of credit	5,100
Amount utilized from lines of credit facility	$ 2,600