Annual report pursuant to Section 13 and 15(d)

ACCUMULATED OTHER COMPREHENSIVE LOSS (Parenthetical)

v3.20.4
ACCUMULATED OTHER COMPREHENSIVE LOSS (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]      
Unrecognized actuarial losses and prior service cost, accumulated tax $ (0.5) $ (0.2) $ (1.6)
Cash flow hedging transactions, tax $ 0.7 $ 0.7 $ 0.7