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Share-based Payments (Tables)
 9 Months Ended
Jun. 30, 2018
Share-based Payments  
Schedule of stock option activity

 

Stock option activity for the nine months ended June 30 was as follows:

 

 

 

2018

 

2017

 

 

 

Shares of stock
under options

 

Weighted average
exercise price

 

Shares of stock
under options

 

Weighted average
exercise price

 

 

 

(in millions)

 

 

 

(in millions)

 

 

 

Outstanding at September 30, prior year

 
0.7

 

$
31.11

 
0.9

 

$
30.36

 

Options granted

 

—

 

—

 

—

 

—

 

Options exercised

 
(0.1

)
27.79

 
(0.2

)
26.42

 

Options forfeited or expired

 

—

 

—

 

—

 

—

 

 

 

 

 

 

 

 

 

 

 

Outstanding at June 30

 
0.6

 
31.62

 
0.7

 
31.11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vested and expected to vest in the future as of June 30

 
0.6

 

$
31.62

 
0.7

 

$
31.11