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Debt - Schedule of Outstanding Debt (Details) $ in Millions | Jun. 30, 2026 USD ($) | Jun. 30, 2026 EUR (€) | Dec. 31, 2025 USD ($) | Dec. 31, 2025 EUR (€)
--- | --- | --- | --- | ---
Principal outstanding |  |  |  |
Short-term debt | $ 44 |  | $ 83 |
Total long-term debt | 6,059 |  | 5,922 |
Less current maturities | (519) |  | (480) |
Total long-term debt, less current maturities | 5,540 |  | 5,442 |
Carrying amount |  |  |  |
Total long-term debt | 6,018 |  | 5,881 |
Less current maturities | (519) |  | (480) |
Total long-term debt, less current maturities | 5,499 |  | 5,401 |
Line of Credit | Revolving Credit Facility |  |  |  |
Principal outstanding |  |  |  |
Total long-term debt | 105 |  | 0 |
Carrying amount |  |  |  |
Total long-term debt | 105 |  | 0 |
Senior Secured Borrowings | U.S. dollar due 2031 |  |  |  |
Principal outstanding |  |  |  |
Total long-term debt | 1,175 |  | 1,175 |
Carrying amount |  |  |  |
Total long-term debt | 1,170 |  | 1,173 |
Senior Secured Borrowings | Euro due 2031 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, face amount | € |  | € 500,000,000 |  | € 500,000,000
Principal outstanding |  |  |  |
Total long-term debt | 571 |  | 587 |
Carrying amount |  |  |  |
Total long-term debt | $ 569 |  | 587 |
Senior Notes and Debentures | U.S. dollar at 4.25% due 2026 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, stated percentage | 4.25% | 4.25% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 400 |  | 400 |
Carrying amount |  |  |  |
Total long-term debt | $ 400 |  | 400 |
Senior Notes and Debentures | €500 at 5.00% due 2028 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, face amount | € |  | € 500,000,000 |  |
Debt instrument, stated percentage | 5.00% | 5.00% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 571 |  | 587 |
Carrying amount |  |  |  |
Total long-term debt | $ 567 |  | 583 |
Senior Notes and Debentures | €500 at 4.75% due 2029 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, face amount | € |  | € 500,000,000 |  |
Debt instrument, stated percentage | 4.75% | 4.75% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 571 |  | 587 |
Carrying amount |  |  |  |
Total long-term debt | $ 566 |  | 582 |
Senior Notes and Debentures | €600 at 4.50% due 2030 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, face amount | € |  | € 600,000,000 |  |
Debt instrument, stated percentage | 4.50% | 4.50% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 685 |  | 705 |
Carrying amount |  |  |  |
Total long-term debt | $ 679 |  | 697 |
Senior Notes and Debentures | U.S. dollar at 5.25% due 2030 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, stated percentage | 5.25% | 5.25% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 500 |  | 500 |
Carrying amount |  |  |  |
Total long-term debt | $ 497 |  | 496 |
Senior Notes and Debentures | €500 at 3.750% due 2031 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, face amount | € |  | € 500,000,000 |  |
Debt instrument, stated percentage | 3.75% | 3.75% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 571 |  | 587 |
Carrying amount |  |  |  |
Total long-term debt | $ 563 |  | 578 |
Senior Notes and Debentures | U.S. dollar at 5.875% due 2033 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, stated percentage | 5.875% | 5.875% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 700 |  | 700 |
Carrying amount |  |  |  |
Total long-term debt | $ 692 |  | 691 |
Senior Notes and Debentures | U.S. dollar at 7.50% due 2096 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, stated percentage | 7.50% | 7.50% |  |
Principal outstanding |  |  |  |
Total long-term debt | $ 40 |  | 40 |
Carrying amount |  |  |  |
Total long-term debt | 40 |  | 40 |
Other Indebtedness, Fixed Rate |  |  |  |
Principal outstanding |  |  |  |
Total long-term debt | 170 |  | 54 |
Carrying amount |  |  |  |
Total long-term debt | $ 170 |  | $ 54 |

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