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Restructuring and Related Activities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | $ 0 | $ (19) | $ 0 | $ (30) |  |  |  |
2023 Restructuring Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | 0 | 2 | 0 | 13 |  |  |  |
Payments for Restructuring | (1) | (6) | (3) | (17) |  |  |  |
Restructuring Reserve, Settled without Cash | 0 | 0 | 0 | (4) |  |  |  |
Restructuring Reserve | 4 | $ 15 | 4 | $ 15 | $ 5 | $ 7 | $ 19 | $ 23
Employee headcount reduction |  | 15.00% |  | 15.00% |  |  |  |
2024 Restructuring Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | 0 | $ 15 | 0 | $ 15 |  |  |  |
Payments for Restructuring | (5) | (1) | (10) | (1) |  |  |  |
Restructuring Reserve, Settled without Cash | 0 | (7) | 0 | (7) |  |  |  |
Restructuring Reserve | $ 26 | 7 | $ 26 | 7 | 31 | 36 |  |
Employee headcount reduction | 10.00% |  | 10.00% |  |  |  |  |
Employee Severance | 2023 Restructuring Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | $ 0 | 1 | $ 0 | 1 |  |  |  |
Payments for Restructuring | 0 | (3) | (1) | (9) |  |  |  |
Restructuring Reserve, Settled without Cash | 0 | 0 | 0 | 0 |  |  |  |
Restructuring Reserve | 1 | 4 | 1 | 4 | 1 | 2 | 6 | 12
Employee Severance | 2024 Restructuring Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | 0 | 8 | 0 | 8 |  |  |  |
Payments for Restructuring | 0 | (1) | (2) | (1) |  |  |  |
Restructuring Reserve, Settled without Cash | 0 | 0 | 0 | 0 |  |  |  |
Restructuring Reserve | 0 | 7 | 0 | 7 | 0 | 2 |  |
Facility Closing | 2023 Restructuring Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | 0 | 1 | 0 | 12 |  |  |  |
Payments for Restructuring | (1) | (3) | (2) | (8) |  |  |  |
Restructuring Reserve, Settled without Cash | 0 | 0 | 0 | (4) |  |  |  |
Restructuring Reserve | 3 | 11 | 3 | 11 | 4 | 5 | $ 13 | $ 11
Facility Closing | 2024 Restructuring Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring Charges | 0 | 7 | 0 | 7 |  |  |  |
Payments for Restructuring | (5) | 0 | (8) | 0 |  |  |  |
Restructuring Reserve, Settled without Cash | 0 | (7) | 0 | (7) |  |  |  |
Restructuring Reserve | $ 26 | $ 0 | $ 26 | $ 0 | $ 31 | $ 34 |  |

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