PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - Pension Plan Assets Measured At Fair Value (Details) - Pensions - USD ($) $ in Millions | 12 Months Ended | | |
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total pension plan assets, percent | 98.80% | | |
U.S. | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | $ 517.5 | $ 483.7 | |
U.S. | Fair value, measurements, recurring | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 517.4 | 483.7 | |
U.S. | Fair value, measurements, recurring | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 43.4 | 38.1 | |
U.S. | Fair value, measurements, recurring | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 102.1 | 83.3 | |
U.S. | Fair value, measurements, recurring | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 2.1 | 1.1 | |
U.S. | Fair value, measurements, recurring | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 37.9 | 38.4 | |
U.S. | Fair value, measurements, recurring | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 138.8 | 160.9 | |
U.S. | Fair value, measurements, recurring | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 192.5 | 160.9 | |
U.S. | Fair value, measurements, recurring | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0.6 | 1 | |
U.S. | Fair value, measurements, recurring | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
U.S. | Fair value, measurements, recurring | Level 1 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 148.2 | 123.5 | |
U.S. | Fair value, measurements, recurring | Level 1 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 43.4 | 38.1 | |
U.S. | Fair value, measurements, recurring | Level 1 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 102.1 | 83.3 | |
U.S. | Fair value, measurements, recurring | Level 1 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 2.1 | 1.1 | |
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 | 0.6 | 1 | |
U.S. | Fair value, measurements, recurring | Level 1 | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
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 2 | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 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 | Level 3 | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
U.S. | Fair value, measurements, recurring | Net Asset Value | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 369.2 | 360.2 | |
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 | 37.9 | 38.4 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 138.8 | 160.9 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 192.5 | 160.9 | |
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 | |
U.S. | Fair value, measurements, recurring | Net Asset Value | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
International | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 627.5 | 591.5 | $ 521.2 |
International | Fair value, measurements, recurring | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 629.7 | 591.5 | |
International | Fair value, measurements, recurring | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 40.5 | 66.3 | |
International | Fair value, measurements, recurring | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 45.5 | 96.3 | |
International | Fair value, measurements, recurring | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 143.4 | 208.4 | |
International | Fair value, measurements, recurring | Registered investment companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 36 | 68.2 | |
International | Fair value, measurements, recurring | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 291 | 98.3 | |
International | Fair value, measurements, recurring | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 3.6 | 14.5 | |
International | Fair value, measurements, recurring | Real estate and other investments | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 69.7 | 39.5 | |
International | Fair value, measurements, recurring | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
International | Fair value, measurements, recurring | Level 1 | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 299.1 | 410.5 | |
International | Fair value, measurements, recurring | Level 1 | Cash and cash equivalents | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 40.5 | 66.3 | |
International | Fair value, measurements, recurring | Level 1 | U.S. companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 45.5 | 96.3 | |
International | Fair value, measurements, recurring | Level 1 | International companies | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 143.4 | 208.4 | |
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 | 69.7 | 39.5 | |
International | Fair value, measurements, recurring | Level 1 | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
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 2 | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 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 | Level 3 | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 0 | | |
International | Fair value, measurements, recurring | Net Asset Value | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 330.6 | 181 | |
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 | 36 | 68.2 | |
International | Fair value, measurements, recurring | Net Asset Value | Hedge funds | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 291 | 98.3 | |
International | Fair value, measurements, recurring | Net Asset Value | Limited partnerships | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | 3.6 | 14.5 | |
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 | |
International | Fair value, measurements, recurring | Net Asset Value | Insurance contracts | | | |
Pension and Other Postretirement Benefit Plans Disclosure [Line Items] | | | |
Total plan assets | $ 0 | | |