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Financial Instruments (Schedule of Effects of Derivatives Recognized) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Derivative gain (loss) recognized in OCI | $ (1) | $ (68) | $ (114) | $ (60)
Interest rate swaps | Derivatives designated as hedging instruments |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Derivative gain (loss) recognized in OCI | (3) | (16) | (14) | (12)
Euro-denominated notes | Derivatives designated as hedging instruments |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Derivative gain (loss) recognized in OCI | 5 | (37) | (123) | (14)
Foreign exchange contracts | Derivatives not designated as hedging instruments |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Derivative gain (loss) recognized in OCI | $ (3) | $ (15) | $ 23 | $ (34)

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