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EMPLOYEE RETIREMENT PLANS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Defined contribution plans [Abstract] |  |  |
Company contributions to all defined contribution plans expensed | $ 941 | $ 793 | $ 749
Maximum age after retirement that employees may use accrued unused sick time to pay for medical and dental premiums | 65 years |  |
Change in benefit obligation [Roll Forward] |  |  |
APBO at beginning of period | $ 241 | 330 |
Service cost | 14 | 19 | 25
Interest cost | 12 | 9 | 10
Benefits paid | (9) | (11) |
Actuarial (gain) loss | 11 | (106) |
APBO at end of period | 269 | 241 | 330
Estimated future benefit payments time period [Abstract] |  |  |
2024 | 15 |  |
2025 | 18 |  |
2026 | 19 |  |
2027 | 20 |  |
2028 | 21 |  |
Next five years thereafter | 127 |  |
Reconciliation of funded status to accrued postretirement benefit cost recognized on the balance sheet [Abstract] |  |  |
Funded status | (269) | (241) |
Unrecognized net actuarial gain | (151) | (173) |
Unrecognized prior service cost | 2 | 3 |
Accumulated other comprehensive income | 149 | 170 |
Consolidated Balance Sheet liability | (269) | (241) |
Components of periodic postretirement benefit cost [Abstract] |  |  |
Service cost | 14 | 19 | 25
Interest cost | 12 | 9 | 10
Amortization of net gain | (10) | (2) | 0
Net periodic postretirement benefit cost | $ 16 | $ 26 | $ 35
Actuarial assumptions used to account for postretirement benefit plans [Abstract] |  |  |
Weighted-average discount rate (as a percent) | 5.20% | 5.60% | 2.90%
Assumed healthcare cost trend rate (as a percent) | 6.25% | 6.50% | 6.25%
Assumed healthcare cost trend rates [Abstract] |  |  |
Assumed healthcare cost trend rate | 6.25% |  |
Assumed healthcare cost decline trend rate | 4.75% |  |

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (i-k) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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