CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (PARENTHETICAL) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Unrealized (losses) gains on revaluation of long-term intercompany balances, taxes	$ 0.0	$ 0.0	$ 0.0
Change in derivative gains on cash flow hedges, taxes	0.0	0.0	0.0
Amortization of net actuarial loss and prior service cost, taxes	0.4	0.6	0.8
Adjustments of net actuarial losses and prior service cost, taxes	$ 2.9	$ 1.1	2.1
Other comprehensive income related to New Avon investment, taxes			$ 0.0