Other Income (Expense), Net

3 Months Ended

Mar. 31, 2023

Other Income and Expenses [Abstract]

Other Income (Expense), Net

9. Other Income (Expense), Net

The following table presents the components of Other income (expense), net (in millions of dollars):

	Quarter Ended March 31,
	2023			2022
Interest income	$	0.4		$	—
Net periodic postretirement benefit cost		(2.0	)		(1.4	)
Unrealized gain (loss) on equity securities		0.1			(0.4	)
Gain on disposition of property, plant and equipment		15.0			—
All other, net		0.1			0.2
Other income (expense), net	$	13.6		$	(1.6	)

Supply Chain Financing. We are party to several supply chain financing arrangements, in which we may sell certain of our customers’ trade accounts receivable to such customers’ financial institutions without recourse. During the quarters ended March 31, 2023 and March 31, 2022, we sold trade accounts receivable totaling $303.2 million and $407.4 million, respectively, related to these supply chain financing arrangements, of which our customers’ financial institutions applied discount fees totaling $7.2 million and $2.9 million, respectively. As of March 31, 2023, we had been and/or expected to be fully reimbursed by our customers for the majority of these discount fees.