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Changes in Capital Structure - Schedule of Repurchases Under Share Repurchase Programs (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 11 Months Ended | 12 Months Ended |  |
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Oct. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Jun. 22, 2023
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased |  | $ 231,000,000 | [1] | $ 91,000,000 | [1] |  | $ 50,000,000 |  |  |  |  |
Excise tax, accrued |  | 2,000,000 |  | $ 1,000,000 |  |  |  | $ 2,000,000 | $ 2,000,000 |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Average price paid per share (in usd per share) | $ 55.65 |  |  |  |  |  |  |  |  |  |  |
Capital Allocation Plan, Open Market Repurchases |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  |  |  |  |  | 4,018,194 |  | 5,054,798 |  |
Average price paid per share (in usd per share) |  |  |  |  |  |  |  | $ 79.26 |  | $ 39.56 |  |
Amounts paid for shares purchased |  |  |  |  |  |  |  | $ 319,000,000 |  | $ 200,000,000 |  |
Shares repurchased accrued |  | 3,000,000 |  |  |  |  |  | $ 3,000,000 | 3,000,000 |  |  |
Capital Allocation Plan, Open Market Repurchases | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) | 2,524,323 |  |  |  |  |  |  |  |  |  |  |
Average price paid per share (in usd per share) | $ 89.23 |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased | $ 225,000,000 |  |  |  |  |  |  |  |  |  |  |
Capital Allocation Plan, Accelerated Repurchase Agreements |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  |  |  |  |  | 1,163,230 |  | 17,676,142 |  |
Amounts paid for shares purchased |  |  |  |  |  |  |  | $ 0 |  | $ 950,000,000 |  |
Capital Allocation Plan, 2023 |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  |  |  |  |  | 5,181,424 |  | 22,730,940 |  |
Amounts paid for shares purchased |  |  |  |  |  |  |  | $ 319,000,000 |  | $ 1,150,000,000 |  |
Share repurchase program, authorized amount |  |  |  |  |  |  |  |  |  |  | $ 2,700,000,000 | $ 3,700,000,000
Excise tax, accrued |  | $ 3,000,000 |  |  |  |  |  | $ 3,000,000 | $ 3,000,000 | $ 10,000,000 |  |
Capital Allocation Plan, 2023 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) | 30,436,687 |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased | $ 1,694,000,000 |  |  |  |  |  |  |  |  |  |  |
November 2023 Accelerated Share Repurchase Agreements |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  |  |  | 1,163,230 |  |  | 18,839,372 |  |  |
Average price paid per share (in usd per share) |  |  |  |  |  |  |  |  | $ 50.43 |  |  |
[1] | Includes excise tax accrued of $2 million and $1 million for the quarters ended September 30 and June 30, 2024, respectively

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