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Pension, Other Postretirement Benefits and Savings Plans - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Curtailment Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) |  |
Termination assets | $ 380 |  |
Estimated obligations termination | 375 |  |
Prescription drug subsidy (less than) | $ 1 |  |
Weighted average discount rate | 3.00% | 2.10% |
Defined contribution plans, contribution expenses | $ 127 | $ 116 | $ 100
Private Equity and Private Credit Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 5.00% |  |
Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 92.00% |  |
Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 2.00% |  |
Real Estate Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 1.00% |  |
Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected contribution to funded non-U.S. pension plans in next year | $ 50 |  |
Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected contribution to funded non-U.S. pension plans in next year | 25 |  |
United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated benefit obligation | 4,077 | 5,780 |
Non-U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated benefit obligation | $ 2,167 | 3,385 |
Non-U.S. | Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 90.00% |  |
Non-U.S. | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 5.00% |  |
Non-U.S. | Unfunded Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated benefit obligation | $ 176 | 226 |
Pension benefit obligation | 211 | 253 |
AOCL adjustment | $ 28 | 57 |
Non-U.S. | Define Real Estate Fund [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 5.00% |  |
Pension Plan [Member] | United Kingdom |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Service cost | $ 21 |  |
Pension Plan [Member] | United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Settlement Charges | 124 | 43 | 28
Curtailment credit (charge) |  |  | 24
Termination benefit charge |  |  | 4
Service cost | 13 | 9 | 4
Benefits cost | 157 | 55 | $ 77
Postretirement benefits funded status | $ 90 | $ (78) |
Weighted average discount rate | 2.74% | 1.72% | 2.66%
Assumed weighted average long term rate of return | 4.23% | 3.74% | 4.22%
Pension benefit obligation | $ 4,084 | $ 5,798 | $ 5,235
AOCL adjustment | 1,839 | 2,157 |
Pension Plan [Member] | Non-U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments And Special Termination Benefits |  |  | 6
Service cost | 24 | 30 | 30
Benefits cost | 40 | 65 | $ 67
Postretirement benefits funded status | $ (184) | $ (192) |
Weighted average discount rate | 2.32% | 1.82% | 2.26%
Assumed weighted average long term rate of return | 2.64% | 2.27% | 2.52%
Pension benefit obligation | $ 2,227 | $ 3,464 | $ 3,382
AOCL adjustment | 457 | 491 |
Other Postretirement Benefits Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Service cost | 3 | 3 | 2
Benefits cost | 16 | 9 | 1
Postretirement benefits funded status | (292) | (406) |
Pension benefit obligation | 292 | 406 | 236
AOCL adjustment | (100) | 2 |
Other Postretirement Benefits Plan [Member] | United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments And Special Termination Benefits |  |  | 4
Termination benefit charge |  |  | 5
Benefits cost | 12 | 5 | $ 1
Postretirement benefits funded status | $ 205 | $ 292 |
Weighted average discount rate | 2.33% | 1.97% | 2.68%
Other Postretirement Benefits Plan [Member] | Non-U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Benefits cost | $ 4 | $ 4 | $ 0
Postretirement benefits funded status | $ 87 | $ 114 |
Weighted average discount rate | 6.65% | 6.54% | 5.68%

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