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Restructuring and Other Charges - Activity and Reserve Balances for Restructuring Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring reserve beginning balance |  |  | $ 8 |
Cash payments |  |  | (4) |
Restructuring charges | $ 4 | $ 4 | 8 | $ 12
Other |  |  | (6) |
Restructuring reserve ending balance | 6 |  | 6 |
Pension plan settlements | (2) | (3) | (5) | (7)
Accelerated depreciation | 1 | 1 | 3 | 6
Pension benefits |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Pension plan settlements | (2) | $ (3) | (5) | (7)
US | Pension benefits |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Pension plan settlements |  |  |  | $ (7)
Layoff costs |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring reserve beginning balance |  |  | 6 |
Cash payments |  |  | (2) |
Restructuring charges |  |  | 5 |
Other |  |  | (5) |
Restructuring reserve ending balance | 4 |  | 4 |
Other exit costs |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring reserve beginning balance |  |  | 2 |
Cash payments |  |  | (2) |
Restructuring charges |  |  | 3 |
Other |  |  | (1) |
Restructuring reserve ending balance | $ 2 |  | 2 |
Accelerated depreciation |  |  | $ 1 |

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