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Restructuring and Other Charges - Schedule of Restructuring and Other Charges by Reportable Segments, Pretax (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring reserve beginning balance |  | $ 8 | $ 19 | $ 54
Cash payments |  | (6) | (16) | (43)
Restructuring and other charges |  | 23 | 56 | 90
Other |  | (18) | (51) | (82)
Restructuring reserve ending balance |  | 7 | 8 | 19
Pension and other post-retirement benefits - net settlement (G) |  | 5 | 58 | 75
Other charges |  | 3 | 6 | 4
Asset impairment charges |  | 14 | 1 | 15
Pension benefits |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Pension and other post-retirement benefits - net settlement (G) | $ 3 | 5 | 58 | 69
Layoff costs |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring reserve beginning balance |  | 6 | 17 | 54
Cash payments |  | (3) | (9) | (41)
Restructuring and other charges |  | 7 | 56 | 79
Other |  | (5) | (58) | (75)
Restructuring reserve ending balance |  | 5 | 6 | 17
Layoff costs | Pension benefits | U.S. and U.K. |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Pension and other post-retirement benefits - net settlement (G) |  |  | 58 | 75
Layoff costs | Pension benefits | U.S. and Canada |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Pension and other post-retirement benefits - net settlement (G) |  | 5 |  |
Other exit costs |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring reserve beginning balance |  | 2 | 2 | 0
Cash payments |  | (3) | (7) | (2)
Restructuring and other charges |  | 16 | 0 | 11
Other |  | (13) | 7 | (7)
Restructuring reserve ending balance |  | 2 | 2 | 2
Accelerated depreciation |  | 2 | 1 | 15
Other charges |  |  |  | 4
Gain (loss) on sale of assets |  | 1 | $ 8 | $ 12
Asset impairment charges |  | $ 12 |  |

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