Other expense, net (Tables)

6 Months Ended

Jun. 30, 2020

Other Income and Expenses [Abstract]

Schedule of other expense, net

Other expense, net consisted of the following:

	Three months ended June 30,				Six months ended June 30,
(in millions)	2020		2019		2020		2019
Foreign currency transactions	$	(5.6)	$	(2.1)	$	(6.4)	$	(2.8)
Foreign currency denominated loans revaluation	(0.4)		(4.7)		(0.2)		0.5
Undesignated foreign currency derivative instruments (1)	2.1		4.3		0.1		(5.6)
Undesignated swap contracts (1)	(1.2)		(3.0)		(6.0)		(2.8)
Non-operating retirement benefits (2)	2.1		0.6		4.3		1.2
Debt refinancing costs	—		—		(0.1)		—
Other	(0.9)		(0.7)		(1.5)		(2.2)
Total other expense, net	$	(3.9)	$	(5.6)	$	(9.8)	$	(11.7)

(1)Refer to “Note 16: Derivatives” for more information.

(2)Refer to “Note 9: Employee benefit plans” for more information.