RETIREMENT PLANS AND OTHER BENEFITS - Schedule of Fair Value of Plan Assets (Details) - Pension Plan - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 |
U.S. Plan | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | $ 0 | $ 118.5 | $ 117.1 |
U.S. Plan | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 2.5 | |
U.S. Plan | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 116 | |
U.S. Plan | Cash, including money market funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 2.5 | |
U.S. Plan | Cash, including money market funds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 2.5 | |
U.S. Plan | Cash, including money market funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Cash, including money market funds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | U.S. equities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 27.6 | |
U.S. Plan | U.S. equities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | U.S. equities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | U.S. equities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 27.6 | |
U.S. Plan | Non-U.S. equities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 8.7 | |
U.S. Plan | Non-U.S. equities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. equities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. equities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 8.7 | |
U.S. Plan | U.S. corporate bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 55.8 | |
U.S. Plan | U.S. corporate bonds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
U.S. Plan | U.S. corporate bonds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
U.S. Plan | U.S. corporate bonds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 55.8 | |
U.S. Plan | Non-U.S. corporate bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. corporate bonds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. corporate bonds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. corporate bonds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | U.S. government securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 16.4 | |
U.S. Plan | U.S. government securities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
U.S. Plan | U.S. government securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
U.S. Plan | U.S. government securities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 16.4 | |
U.S. Plan | Non-U.S. government securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0.6 | |
U.S. Plan | Non-U.S. government securities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
U.S. Plan | Non-U.S. government securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
U.S. Plan | Non-U.S. government securities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0.6 | |
U.S. Plan | Non-U.S. governmental fixed income funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. governmental fixed income funds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. governmental fixed income funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Non-U.S. governmental fixed income funds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Real estate | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Real estate | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Real estate | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Real estate | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Other securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 6.9 | |
U.S. Plan | Other securities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Other securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
U.S. Plan | Other securities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 6.9 | |
Non-U.S. Plans | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 107.5 | 121.2 | $ 108.3 |
Non-U.S. Plans | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0.7 | 2.9 | |
Non-U.S. Plans | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 106.8 | 118.3 | |
Non-U.S. Plans | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Cash, including money market funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0.7 | 2.9 | |
Non-U.S. Plans | Cash, including money market funds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0.7 | 2.9 | |
Non-U.S. Plans | Cash, including money market funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Cash, including money market funds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | U.S. equities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 11.1 | 6.4 | |
Non-U.S. Plans | U.S. equities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | U.S. equities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 11.1 | 6.4 | |
Non-U.S. Plans | U.S. equities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Non-U.S. equities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 10.7 | 24.4 | |
Non-U.S. Plans | Non-U.S. equities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Non-U.S. equities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 10.7 | 24.4 | |
Non-U.S. Plans | Non-U.S. equities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | U.S. corporate bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0.6 | |
Non-U.S. Plans | U.S. corporate bonds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | U.S. corporate bonds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0.6 | |
Non-U.S. Plans | U.S. corporate bonds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | Non-U.S. corporate bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 2.5 | 19.3 | |
Non-U.S. Plans | Non-U.S. corporate bonds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Non-U.S. corporate bonds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 2.5 | 19.3 | |
Non-U.S. Plans | Non-U.S. corporate bonds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | U.S. government securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | U.S. government securities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | U.S. government securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | U.S. government securities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | Non-U.S. government securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 32.7 | |
Non-U.S. Plans | Non-U.S. government securities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | Non-U.S. government securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 32.7 | |
Non-U.S. Plans | Non-U.S. government securities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | | 0 | |
Non-U.S. Plans | Non-U.S. governmental fixed income funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 59.7 | 26 | |
Non-U.S. Plans | Non-U.S. governmental fixed income funds | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Non-U.S. governmental fixed income funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 59.7 | 26 | |
Non-U.S. Plans | Non-U.S. governmental fixed income funds | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Real estate | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 3.7 | 3.5 | |
Non-U.S. Plans | Real estate | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Real estate | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 3.7 | 3.5 | |
Non-U.S. Plans | Real estate | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Other securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 19.1 | 5.4 | |
Non-U.S. Plans | Other securities | Fair Value, Inputs, Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 0 | 0 | |
Non-U.S. Plans | Other securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | 19.1 | 5.4 | |
Non-U.S. Plans | Other securities | NAV | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Total investments measured at fair value | $ 0 | $ 0 | |