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Earnings Per Share (Tables)
 9 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted The following table sets forth the computation of basic and diluted earnings per share under the two-class method (in millions, except per share data):

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

June 30,

 

 

June 30,

 

 

 

2022

 

 

2021

 

 

2022

 

 

2021

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

Net income attributable to common stockholders

 

$

377.9

 

 

$

250.1

 

 

$

600.1

 

 

$

514.6

 

Less: Distributed and undistributed income
   available to participating securities

 

 

—

 

 

 

—

 

 

 

(0.1

)

 

 

(0.1

)

Distributed and undistributed income available to
   common stockholders

 

$

377.9

 

 

$

250.1

 

 

$

600.0

 

 

$

514.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

Basic weighted average shares outstanding

 

 

255.6

 

 

 

266.5

 

 

 

261.2

 

 

 

264.7

 

Effect of dilutive stock options and non-
   participating securities

 

 

1.8

 

 

 

2.5

 

 

 

2.0

 

 

 

2.3

 

Diluted weighted average shares outstanding

 

 

257.4

 

 

 

269.0

 

 

 

263.2

 

 

 

267.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic earnings per share attributable to common
   stockholders

 

$

1.48

 

 

$

0.94

 

 

$

2.30

 

 

$

1.94

 

Diluted earnings per share attributable to
   common stockholders

 

$

1.47

 

 

$

0.93

 

 

$

2.28

 

 

$

1.93