Other (expense), net (Tables)

6 Months Ended

Jun. 30, 2021

Other Income and Expenses [Abstract]

Schedule of Other (Expense) Net

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Postretirement expense*	$	(225.1)	$	(24.2)	$	(392.8)	$	(46.9)
Loss on debt extinguishment	—		(28.5)		—		(28.5)
Foreign exchange gains (losses)**	2.0		0.7		(0.9)		(14.9)
Environmental costs and other, net	(4.7)		(1.7)		(16.7)		(11.5)
Total other (expense), net	$	(227.8)	$	(53.7)	$	(410.4)	$	(101.8)

*Includes $210.7 million and $368.7 million in the three and six months ended June 30, 2021, respectively, of settlement losses related to defined benefit pension plans. See Note 5.

**Includes a credit of $(0.7) million and a credit of $(0.6) million for net foreign currency gains for the three months ended June 30, 2021 and 2020, respectively, related to substantial completion of liquidation of foreign subsidiaries. Includes $1.6 million and $18.4 million for net foreign currency losses for the six months ended June 30, 2021 and 2020, respectively, related to substantial completion of liquidation of foreign subsidiaries.