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Debt - Trust I Facility Agreement (Details) - USD ($) $ in Millions |  |  | 6 Months Ended
--- | --- | --- | ---
May 13, 2025 | Aug. 18, 2020 | Jun. 30, 2025 | Jun. 30, 2024
Line of Credit Facility [Line Items] |  |  |  |
Issuance of long-term debt, net of issuance costs |  |  | $ 0 | $ 346
Issuance of 2.330% Senior Notes, due 2030 | Senior notes |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 2.33% |  | 2.33% |
Issuance of long-term debt, net of issuance costs | $ 500 |  | $ 500 |
Trust eligible assets received |  |  | $ 418 |
Trust I Facility Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility agreement term |  | 10 years |  |
Pre-capitalized securities, sold by trust |  | $ 500 |  |
Commitment fee percentage |  | 1.691% |  |
Trust I Facility Agreement | Issuance of 2.330% Senior Notes, due 2030 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt instrument, face amount |  | $ 500 |  |
Debt instrument, interest rate, stated percentage |  | 2.33% |  |

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