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Debt - Activity (Details) € in Millions, $ in Millions	1 Months Ended			9 Months Ended
Debt - Activity (Details) € in Millions, $ in Millions	Aug. 31, 2025 USD ($)	Jul. 31, 2025 USD ($)	May 31, 2025 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	May 31, 2025 EUR (€)	Dec. 31, 2024
Long-term debt
Repayments of long-term borrowings				$ 2,866	$ 3,279
Short-term uncommitted credit facilities
Long-term debt
Available borrowing capacity under line of credit facility				$ 1,020
Senior Notes 5.25% due July 2025
Long-term debt
Interest rate (as a percent)		5.25%					5.25%
Repayments of long-term borrowings		$ 189
Senior Notes 4.25%, euro denominated, due July 2032
Long-term debt
Interest rate (as a percent)				4.25%		4.25%
Face amount of debt \| €						€ 850
Senior Notes 5.50%, senior notes due in 2033
Long-term debt
Interest rate (as a percent)	5.50%
Face amount of debt	$ 750
U.S. dollar revolver due June 2027
Long-term debt
Repayments of senior debt	600		$ 500
Committed multi-currency revolving credit facilities due 2027
Long-term debt
Repayments of senior debt	$ 100		$ 200
Maximum borrowing capacity of revolving credit facility				$ 1,750
Available borrowing capacity under line of credit facility				$ 1,700
Senior Notes 6.875% due March 2028
Long-term debt
Interest rate (as a percent)				6.875%			6.875%