PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS - Changes in Fair Value Measurements that Used Significant Unobservable Inputs (Details) - Other holdings - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2022 |
Dec. 31, 2021 |
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| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Beginning of period | $ 152 | |
| End of period | 85 | $ 152 |
| Significant unobservable inputs (Level 3) | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Beginning of period | 9 | 11 |
| Purchases | (2) | |
| Transfers out | 1 | |
| End of period | $ 8 | $ 9 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, measured using unobservable input, of increase in plan asset of defined benefit plan from purchase. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan, for assets transferred into (out of) Level 3 of fair value hierarchy. Includes, but is not limited to, transfer due to change in observability of significant inputs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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