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RESTRUCTURING ACTIVITIES AND IMPAIRMENT CHARGES - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset impairment charges | $ 5 | $ 0 | $ 29 | $ 0 |
Total restructuring and impairment charges | 11 | 7 | 47 | 21 |
Total restructuring charges | $ 6 | 7 | $ 18 | 21 |
Invigorate Program |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Target percent for annual productivity savings | 3.00% |  | 3.00% |  |
Pre-tax restructuring charges | $ 6 | 7 | $ 18 | 21 |
Invigorate Program | Accounts Payable and Accrued Expenses |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring reserve | 14 |  | 14 |  | $ 13
Invigorate Program | Cost of services |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total restructuring and impairment charges | 2 |  | 8 |  |
Total restructuring charges |  | 4 |  | 12 |
Invigorate Program | Selling, general and administrative |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total restructuring and impairment charges | 4 |  | 10 |  |
Total restructuring charges |  | $ 3 |  | $ 9 |
Invigorate Program | Other Operating Income, net |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total restructuring and impairment charges | $ 5 |  | $ 29 |  |

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