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Capital Structure - Capped Call Options (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Option Indexed to Issuer's Equity [Line Items] |  |  |  |
Borrowings outstanding |  | $ 10,892 | $ 10,940 |
Capped call options |  | 253 |  |
Other income, net |  | 44 | $ 47 | $ 56
Convertible Senior Notes, due 2048 | Senior Notes |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |
Capped call, convertible debt, conversion, premium | $ 257 |  |  |
Borrowings outstanding | $ 232 |  |  |
Convertible Senior Notes Capped Calls | Senior Notes |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |
Capped calls, strike price (in usd per share) | $ 40.94 |  |  |
Capped call cap price (in usd per share) | $ 249.00 |  |  |
Capped call transaction cost | $ 257 |  |  |
Other income, net | 4 |  |  |
Additional Paid-In Capital |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |
Capped call options |  | $ 253 |  |
Additional Paid-In Capital | Convertible Senior Notes Capped Calls | Senior Notes |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |
Capped call options | $ 253 |  |  |

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