Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of share-based compensation expenses

Total share-based compensation expenses were comprised as follows (in millions):

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Option awards	$	2.3	$	5.9	$	5.3	$	9.6
Other share-based awards	11.5		15.4		18.1		17.2
Total share-based compensation before tax	13.8		21.3		23.4		26.8
Tax benefit	3.3		5.1		5.6		6.4
Total share-based compensation expense included in net income (loss)	$	10.5	$	16.2	$	17.8	$	20.4