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RETIREMENT AND POSTRETIREMENT BENEFIT PLANS - OBLIGATIONS AND FUNDED STATUS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Amounts recognized in the Consolidated Balance Sheet: |  |  |
Deferred credits and other liabilities — pension and postretirement obligations | $ (931) | $ (1,055) |
Pension Benefits |  |  |
Amounts recognized in the Consolidated Balance Sheet: |  |  |
Other long-term assets | 126 | 102 |
Accrued liabilities | (3) | (3) |
Deferred credits and other liabilities — pension and postretirement obligations | (270) | (344) |
Total amount recognized in consolidated balance sheet | (147) | (245) |
Accumulated other comprehensive loss included the following after-tax balances: |  |  |
Net (gain) loss | 3 | 17 |
Prior service credit | 0 | 0 |
AOCI after-tax balances | 3 | 17 |
Changes in the benefit obligation: |  |  |
Benefit obligation — beginning of year | 886 | 1,273 |
Service cost — benefits earned during the period | 5 | 7 | $ 8
Interest cost on projected benefit obligation | 45 | 36 | 35
Actuarial (gain) loss | 19 | (297) |
Benefits paid | (80) | (123) |
Other | 4 | (10) |
Benefit obligation — end of year | 879 | 886 | 1,273
Changes in plan assets: |  |  |
Fair value of plan assets — beginning of year | 641 | 1,070 |
Actual return (loss) on plan assets | 77 | (304) |
Employer contributions | 89 | 16 |
Benefits paid | (80) | (123) |
Other | 5 | (18) |
Fair value of plan assets — end of year | 732 | 641 | 1,070
Unfunded status: | (147) | (245) |
Accumulated Benefit Obligation in Excess of Plan Assets |  |  |
Projected benefit obligation | 719 | 738 |
Accumulated benefit obligation | 717 | 736 |
Fair value of plan assets | 543 | 458 |
Plan Assets in Excess of Accumulated Benefit Obligation |  |  |
Projected benefit obligation | 160 | 148 |
Accumulated benefit obligation | 157 | 146 |
Fair value of plan assets | 189 | 183 |
Postretirement Benefits |  |  |
Amounts recognized in the Consolidated Balance Sheet: |  |  |
Other long-term assets | 0 | 0 |
Accrued liabilities | (57) | (62) |
Deferred credits and other liabilities — pension and postretirement obligations | (661) | (711) |
Total amount recognized in consolidated balance sheet | (718) | (773) |
Accumulated other comprehensive loss included the following after-tax balances: |  |  |
Net (gain) loss | (217) | (190) |
Prior service credit | (45) | (52) |
AOCI after-tax balances | (262) | (242) |
Changes in the benefit obligation: |  |  |
Benefit obligation — beginning of year | 773 | 1,220 |
Service cost — benefits earned during the period | 16 | 38 | 42
Interest cost on projected benefit obligation | 37 | 33 | 33
Actuarial (gain) loss | (53) | (468) |
Benefits paid | (65) | (58) |
Other | 10 | 8 |
Benefit obligation — end of year | 718 | 773 | 1,220
Changes in plan assets: |  |  |
Fair value of plan assets — beginning of year | 0 | 0 |
Actual return (loss) on plan assets | 0 | 0 |
Employer contributions | 54 | 49 |
Benefits paid | (64) | (57) |
Other | 10 | 8 |
Fair value of plan assets — end of year | 0 | 0 | $ 0
Unfunded status: | $ (718) | $ (773) |

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