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Restructuring and Other Charges - Narrative (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2021 USD ($) | Dec. 31, 2022 USD ($) segment | Dec. 31, 2021 USD ($) employee | Dec. 31, 2020 USD ($) employee
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  | $ 56 | $ 90 | $ 182
Pension, other post-retirement benefits and deferred compensation - net settlement and curtailments |  | (58) | (75) | (69)
Other |  | 6 | 4 | 8
Accelerated depreciation |  | 1 | 15 | 2
Gain (loss) on sale of assets |  | 8 | 12 | 3
Benefit from termination of plan |  |  |  | 3
Impairment of assets to be disposed of |  | 8 | 15 | 5
Pension benefits paid |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges | $ 34 |  |  | 69
Pension, other post-retirement benefits and deferred compensation - net settlement and curtailments |  | (58) | (75) |
Curtailment (charge) benefit |  | 0 | (6) | 0
Other postretirement benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Curtailment (charge) benefit |  | 0 | 0 | 2
Layoff costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  |  | $ 7 | $ 113
Number of employees associated with layoff costs | employee |  |  | 253 | 4,301
Layoff costs | Corporate |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  |  | 23
Layoff costs | Engineered Structures |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  | 171 |
Layoff costs | Engine Products |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  | 75 | 1,706
Layoff costs | Fastening Systems |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  | 6 | 1,675
Layoff costs | Corporate Aircraft |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  | 1 |
Layoff costs | Engineered Structures |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  |  | 805
Layoff costs | Forged Wheels |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | employee |  |  |  | 92
Asset Impairment Associated Facility Closure |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  |  | $ 4 | $ 1
Facility Closing |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  | 1 | 4 | 6
Facility Closing | U.K. Forging Business |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  |  |  | 5
Reversal Of Prior Period Programs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  | $ (1) | (3) | (21)
2021 Restructuring Programs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees associated with layoff costs | segment |  | 253 |  |
Number of employees separated | segment |  | 80 |  |
U.K. and U.S. pension plan settlement accounting | Pension benefits paid |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Pension, other post-retirement benefits and deferred compensation - net settlement and curtailments |  |  |  | 74
Impairment Of A Cost Method Investment |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  |  |  | 5
Pension Settlement Cost |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other charges |  | $ 17 | $ 12 | $ 8

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