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Financing arrangements - Cross-Currency Swaps (Details)	Dec. 31, 2023
2.00% €750 million notes due 2026 (2.00% 2026 euro Notes) | Notes payable
Debt Instrument [Line Items]
Interest rate, stated percentage	2.00%
2.00% €750 million notes due 2026 (2.00% 2026 euro Notes) | Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	2.00%
5.50% £475 million notes due 2026 (5.50% 2026 pound sterling Notes) | Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	5.50%
4.00% £700 million notes due 2029 (4.00% 2029 pound sterling Notes) | Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%

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Contractual interest rate for funds borrowed, under the debt agreement.

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