Other (expense), net

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Other (expense), net

Other (expense), net

Other (expense), net is comprised of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Postretirement expense*	$	(12.2)	$	(23.5)	$	(405.0)	$	(70.3)
Loss on debt extinguishment	—		—		—		(28.5)
Foreign exchange gains (losses)**	(2.1)		0.7		(3.0)		(14.2)
Environmental costs and other, net	(9.9)		(9.7)		(26.6)		(21.3)
Total other (expense), net	$	(24.2)	$	(32.5)	$	(434.6)	$	(134.3)

*Includes $368.7 million in the nine months ended September 30, 2021 of settlement losses related to defined benefit pension plans. See Note 5.

**Includes net foreign currency losses of $1.3 million for the three months ended September 30, 2021 and net foreign currency gains of $0.6 million for the three months ended September 30, 2020, related to substantial completion of liquidation of foreign subsidiaries. Includes net foreign currency losses of $2.9 million and $17.8 million for the nine months ended September 30, 2021 and 2020, respectively, related to substantial completion of liquidation of foreign subsidiaries.