Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of our basic and diluted net income per common share is as follows:

	Year Ended December 31,
(In millions, except per share data)	2021		2020		2019
Net income to common shareholders	$	263.9	$	121.6	$	249.0
Basic weighted average shares outstanding	231.0		235.2		233.9
Diluted weighted average shares outstanding	231.9		236.0		235.8
Net income per common share:
Basic net income per share	$	1.14	$	0.52	$	1.06
Diluted net income per share	$	1.14	$	0.52	$	1.06