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ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in Amounts Included in Our Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Balance at beginning of period |  |  | $ 9,721 |
Translation adjustments | $ (8) | $ 6 | 13 | $ (8)
Total other comprehensive (loss) income | 1 | 13 | 47 | 14
Balance at end of period | 9,438 | 9,927 | 9,438 | 9,927
Pension |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Balance at beginning of period | (564) | (498) | (583) | (515)
Other comprehensive loss before reclassifications | (0) | (1) | (3) | 0
Amounts reclassified from accumulated other comprehensive loss to earnings | 12 | 9 | 34 | 25
Total other comprehensive (loss) income | 12 | 8 | 31 | 25
Balance at end of period | (552) | (490) | (552) | (490)
Other Post-Employment Benefits |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Balance at beginning of period | 23 | 22 | 23 | 24
Other comprehensive loss before reclassifications | (1) | 0 | 0 | (3)
Amounts reclassified from accumulated other comprehensive loss to earnings | 0 | (1) | (1) | 0
Total other comprehensive (loss) income | (1) | (1) | (1) | (3)
Balance at end of period | 22 | 21 | 22 | 21
Translation Adjustments and Other |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Balance at beginning of period | 185 | 184 | 158 | 198
Translation adjustments | (8) | 6 | 13 | (8)
Unrealized (loss) gain on cash flow hedges | (2) | 0 | 4 | 0
Total other comprehensive (loss) income | (10) | 6 | 17 | (8)
Balance at end of period | 175 | 190 | 175 | 190
Accumulated Other Comprehensive Loss |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Balance at beginning of period | (356) | (292) | (402) | (293)
Total other comprehensive (loss) income | 1 | 13 | 47 | 14
Balance at end of period | $ (355) | $ (279) | $ (355) | $ (279)

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