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Stockholders’ Equity - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 21, 2023 USD ($) | Aug. 31, 2024 USD ($) shareholder shares | Apr. 30, 2024 $ / shares shares | Feb. 29, 2024 USD ($) shareholder shares | Sep. 30, 2024 USD ($) shares | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) shares | Sep. 30, 2024 USD ($) shares | Sep. 30, 2023 USD ($) | Nov. 30, 2024 USD ($) | Nov. 30, 2023 USD ($)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased and retired during period, value |  |  |  |  | $ 362,000,000 | $ 325,000,000 | $ 715,000,000 |  |  |  |  |  |
Stock repurchase program, remaining authorized repurchase amount |  |  |  |  | 68,000,000 |  |  |  |  | $ 68,000,000 |  |  |
Dividends |  |  |  |  | 0 |  |  | $ 0 |  | 0 | $ 0 |  |
Share-based compensation arrangement by share-based payment award, options, exercises in period, intrinsic value |  |  |  |  |  |  |  |  |  | 288,000,000 | 244,000,000 |  |
Share-based compensation arrangement by share-based payment award, options, vested in period, fair value |  |  |  |  |  |  |  |  |  | 3,000,000 | 4,000,000 |  |
Share-based payment arrangement, nonvested award, cost not yet recognized, amount |  |  |  |  | 478,000,000 |  |  |  |  | $ 478,000,000 |  |  |
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition |  |  |  |  |  |  |  |  |  | 1 year 7 months 2 days |  |  |
Share-based payment arrangement, amount capitalized | $ 39,000,000 |  |  |  | (9,000,000) |  |  | (41,000,000) |  | $ (27,000,000) | (41,000,000) |  |
Share-based payment arrangement, expense, tax benefit |  |  |  |  | $ (29,000,000) |  |  | $ (247,000,000) |  | $ (62,000,000) | $ (247,000,000) |  |
Restricted Stock Units (RSUs) Performance Shares |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Granted (in shares) | shares |  |  | 586,920 |  |  |  |  |  |  | 586,920 |  |  |
Granted, weighted average exercise price (in dollars per share) | $ / shares |  |  | $ 36.35 |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award requisite service period |  |  | 2 years 8 months 12 days |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program - Nov 2023 |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000,000
Repurchase and retirement of common stock (in shares) | shares |  |  |  |  |  |  |  |  | 32,804,891 |  |  |  |
Stock repurchased and retired during period, value |  |  |  |  |  |  |  |  | $ 965,000,000 |  |  |  |
Stock Repurchase Program - Feb 2024 |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |
Repurchase and retirement of common stock (in shares) | shares |  |  |  | 14,395,994 |  |  |  |  |  |  |  |  |
Stock repurchased and retired during period, value |  |  |  | $ 390,000,000 |  |  |  |  |  |  |  |  |
Number of shareholders | shareholder |  |  |  | 3 |  |  |  |  |  |  |  |  |
Stock Repurchase Program - June 2024 |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 500,000,000 |  |  | $ 500,000,000 |  |  |  |
Repurchase and retirement of common stock (in shares) | shares |  |  |  |  | 10,782,385 |  |  |  |  | 13,069,383 |  |  |
Stock repurchased and retired during period, value |  |  |  |  | $ 362,000,000 |  |  |  |  | $ 437,000,000 |  |  |
Stock Repurchase Program - June 2024 | Related Party |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and retirement of common stock (in shares) | shares |  | 3,700,000 |  |  |  |  |  |  |  |  |  |  |
Stock repurchased and retired during period, value |  | $ 117,000,000 |  |  |  |  |  |  |  |  |  |  |
Number of shareholders | shareholder |  | 1 |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program - November 2024 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  |  |  |  | $ 750,000,000 |

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Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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Data Type: | na
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Period Type: |