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Changes in Capital Structure - Schedule of Repurchases Under Share Repurchase Programs (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 14 Months Ended |  |
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Jul. 31, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Oct. 31, 2023 | Jun. 30, 2023
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased |  | $ 282,000,000 | [1] | $ 322,000,000 | [1] | $ 91,000,000 | [2] | $ 0 | [3] |  |  |  |  |  |
Excludes or includes accrued excise tax |  | 2,000,000 |  | $ 2,000,000 |  | $ 1,000,000 |  |  |  | $ 2,000,000 | $ 9,000,000 | $ 10,000,000 | $ 9,000,000 |  |
Subsequent Event | Convertible Senior Notes, due 2048 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) | 224,585 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average price paid per share (in usd per share) | $ 69.38 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased | $ 16,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Allocation Plan, Open Market Repurchases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  |  |  |  |  |  |  | 5,594,139 | 10,562,333 | 5,054,798 |  |  |
Average price paid per share (in usd per share) |  |  |  |  |  |  |  |  |  | $ 107.14 | $ 87.57 | $ 39.56 |  |  |
Amounts paid for shares purchased |  |  |  |  |  |  |  |  |  | $ 600,000,000 | $ 925,000,000 | $ 200,000,000 |  |  |
Excludes or includes accrued excise tax |  | $ 6,000,000 |  |  |  |  |  |  |  | 6,000,000 |  |  |  |  |
Estimated excise tax excluded |  |  |  |  |  |  |  |  |  | $ 4,000,000 |  |  |  |  |
Capital Allocation Plan, Open Market Repurchases | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) | 988,749 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average price paid per share (in usd per share) | $ 154.30 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased | $ 152,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
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) |  |  |  |  |  |  |  |  |  | 5,594,139 | 11,725,563 | 22,730,940 |  |  |
Amounts paid for shares purchased |  |  |  |  |  |  |  |  |  | $ 600,000,000 | $ 925,000,000 | $ 1,150,000,000 |  |  |
Share repurchase program, authorized amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,700,000,000 | $ 2,700,000,000
Capital Allocation Plan, 2023 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares purchased (in shares) | 41,263,976 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average price paid per share (in usd per share) | $ 68.88 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts paid for shares purchased | $ 2,843,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 for each of the quarters ended June 30 and March 31, 2025
[2] | Includes excise tax accrued of $1 million for the quarter ended June 30, 2024
[3] | Represents the final settlements of the November 6, 2023 ASR agreements. See Note 9, Changes in Capital Structure for additional information

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