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Financial Instruments (Narrative) (Details) € in Millions, $ in Billions | Sep. 30, 2025 EUR (€) | Sep. 30, 2025 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2024 USD ($)
--- | --- | --- | --- | ---
Derivatives, Fair Value [Line Items] |  |  |  |
Aggregate notional principal outstanding | $ |  | $ 24 |  | $ 17
2.150% Notes due 2030 |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Long-term debt | € 500 |  | € 500 |
2.150% Notes due 2030 | Designated as Hedging Instrument |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Long-term debt |  |  | € 320 |

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