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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2022
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table presents the calculation of our basic and diluted EPS:
Three Months Ended
September 30,		Nine Months Ended
September 30,
(in millions, except per share amounts)2022202120222021
Numerator:
Net Income Available to Common Shareholders - Basic
$52.0 $49.4 $518.2 $377.6 
Dilutive effect of Equity Units0.5 0.6 1.5 1.0 
Net Income Available to Common Shareholders - Diluted
$52.5 $50.0 $519.7 $378.6 
Denominator:
Average common shares outstanding - Basic406.5 393.2 406.3 392.9 
Dilutive potential common shares:
Equity Units purchase contracts31.3 35.2 29.4 21.3 
Equity Units purchase contract payment balance3.0 — 3.4 — 
Shares contingently issuable under employee stock plans0.9 0.9 1.0 0.7 
Shares restricted under employee stock plans0.6 0.3 0.5 0.3 
ATM forward agreements1.1 0.7 1.1 0.6 
Average Common Shares - Diluted443.4 430.3 441.7 415.8 
Earnings per common share:
Basic$0.13 $0.13 $1.28 $0.96 
Diluted$0.12 $0.12 $1.18 $0.91