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FINANCIAL INSTRUMENTS - Hedge accounting (Details) - Cash flow hedges ¥ in Millions, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) $ / $ | Dec. 31, 2023 USD ($) $ / ¥ | Dec. 31, 2022 USD ($) $ / $ | Dec. 31, 2022 USD ($) $ / ¥ | Dec. 31, 2021 USD ($) $ / $ | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥) | Sep. 30, 2022 USD ($)
SOFR hedges | Hedge one |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value | $ 60.0 | $ 60.0 |  |  |  |  |  |
Annual rate of interest | 3.605% | 3.605% |  |  |  | 3.605% |  |
SOFR hedges | Hedge two |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value | $ 60.0 | $ 60.0 |  |  |  |  |  |
Annual rate of interest | 3.912% | 3.912% |  |  |  | 3.912% |  |
SOFR hedges | Hedge three |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value | $ 64.5 | $ 64.5 |  |  |  |  |  |
Annual rate of interest | 3.895% | 3.895% |  |  |  | 3.895% |  |
LIBOR Hedges | IFC Loan |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value |  |  |  |  |  |  |  | $ 400.0
LIBOR Hedges | IIC Loan |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value |  |  |  |  |  |  |  | 100.0
LIBOR Hedges | NDF |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value |  |  |  |  |  |  |  | $ 440.0
LIBOR Hedges | NDF | Minimum |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Annual rate of interest |  |  |  |  |  |  |  | 2.085%
LIBOR Hedges | NDF | Maximum |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Annual rate of interest |  |  |  |  |  |  |  | 2.4525%
Exchange Rate Hedges | NDF |  |  |  |  |  |  |  |
Hedge accounting |  |  |  |  |  |  |  |
Principal residual nominal value | $ 752.0 | $ 752.0 | $ 262.0 | $ 262.0 | $ 473.0 | ¥ 20 | ¥ 15 |
Average exchange rate as a result of hedge | 279.8 | 37 | 166.1 | 27.8 | 102.49 |  |  |

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