PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - Pension plan assets measured at fair value (Details) - Pensions - USD ($) $ in Millions | 12 Months Ended | | |
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total pension plan assets, percent | 98.60% | | |
U.S. | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | $ 377.3 | $ 517.5 | $ 483.7 |
U.S. | Fair value, measurements, recurring | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 377.3 | 517.4 | |
U.S. | Fair value, measurements, recurring | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 36.9 | 43.4 | |
U.S. | Fair value, measurements, recurring | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 67 | 102.1 | |
U.S. | Fair value, measurements, recurring | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 2.1 | |
U.S. | Fair value, measurements, recurring | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 28.4 | 37.9 | |
U.S. | Fair value, measurements, recurring | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 108.8 | 138.8 | |
U.S. | Fair value, measurements, recurring | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 136.2 | 192.5 | |
U.S. | Fair value, measurements, recurring | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0.6 | |
U.S. | Fair value, measurements, recurring | Level 1 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 103.9 | 148.2 | |
U.S. | Fair value, measurements, recurring | Level 1 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 36.9 | 43.4 | |
U.S. | Fair value, measurements, recurring | Level 1 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 67 | 102.1 | |
U.S. | Fair value, measurements, recurring | Level 1 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 2.1 | |
U.S. | Fair value, measurements, recurring | Level 1 | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 1 | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 1 | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 1 | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0.6 | |
U.S. | Fair value, measurements, recurring | Level 2 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 2 | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Level 3 | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 273.4 | 369.2 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 28.4 | 37.9 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 108.8 | 138.8 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 136.2 | 192.5 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 372 | 627.5 | $ 591.5 |
International | Fair value, measurements, recurring | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 372.7 | 629.7 | |
International | Fair value, measurements, recurring | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 49.4 | 40.5 | |
International | Fair value, measurements, recurring | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 45.5 | |
International | Fair value, measurements, recurring | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 9.1 | 143.4 | |
International | Fair value, measurements, recurring | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 42.7 | 36 | |
International | Fair value, measurements, recurring | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 221.1 | 291 | |
International | Fair value, measurements, recurring | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 2.3 | 3.6 | |
International | Fair value, measurements, recurring | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 48.1 | 69.7 | |
International | Fair value, measurements, recurring | Level 1 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 106.6 | 299.1 | |
International | Fair value, measurements, recurring | Level 1 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 49.4 | 40.5 | |
International | Fair value, measurements, recurring | Level 1 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 45.5 | |
International | Fair value, measurements, recurring | Level 1 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 9.1 | 143.4 | |
International | Fair value, measurements, recurring | Level 1 | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 1 | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 1 | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 1 | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 48.1 | 69.7 | |
International | Fair value, measurements, recurring | Level 2 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 2 | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Level 3 | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Net Asset Value | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 266.1 | 330.6 | |
International | Fair value, measurements, recurring | Net Asset Value | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Net Asset Value | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Net Asset Value | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | 0 | |
International | Fair value, measurements, recurring | Net Asset Value | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 42.7 | 36 | |
International | Fair value, measurements, recurring | Net Asset Value | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 221.1 | 291 | |
International | Fair value, measurements, recurring | Net Asset Value | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 2.3 | 3.6 | |
International | Fair value, measurements, recurring | Net Asset Value | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | $ 0 | $ 0 | |