Share-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based Compensation Cost Recognized

Share-based compensation awards cost recognized in the consolidated income statement is summarized below:

	Three Months Ended June 30, 2017		Nine Months Ended June 30, 2017
(In millions)
Before-Tax Share-Based Compensation Award Cost	$	2.1	$	5.6
Income Tax Benefit	0.8		2.0
After-Tax Share-Based Compensation Award Cost	$	1.3	$	3.6

Share-based Compensation Cost by Type of Program

Total before-tax share-based compensation award cost by type of program was as follows:

	Three Months Ended June 30, 2017		Nine Months Ended June 30, 2017
(In millions)
Restricted stock units	$	2.0	$	5.4
Stock options	0.1		0.2
Before-Tax Share-Based Compensation Cost	$	2.1	$	5.6

Assumptions Used in the Calculation of the Fair Value of Market-based Deferred Stock Units

The calculation of the fair value of market-based restricted stock units during the three months ended December 31, 2016 used the following assumptions:

(In percentages)
Expected volatility	28.7	%
Risk-free interest rate	1.4	%

Summary of Restricted Stock Unit Activity

A summary of restricted stock unit activity is presented below:

	Shares		Weighted Average Grant-Date Fair Value
(In millions, except weighted average)
Outstanding, September 30, 2016	—		$	—
Converted on October 1, 2016	0.5		22.85
Granted	0.7		25.30
Paid out	(0.1	)	15.55
Forfeited/adjustments	—		—
Outstanding, June 30, 2017	1.1		$	25.30

Summary of Stock Option Activity

A summary of stock option activity is presented below:

	Shares	Weighted Average Exercise Price
(In millions, except weighted average)
Outstanding, September 30, 2016	—	$	—
Converted on October 1, 2016	0.5	18.37
Granted	—	—
Exercised	—	—
Forfeited	—	—
Outstanding, June 30, 2017	0.5	$	18.36

	Weighted Average Remaining Contractual Terms (In years)	Aggregate Intrinsic Value
(In millions, except years)
Outstanding, June 30, 2017	5.7	$	7.2
Exercisable, June 30, 2017	5.6	7.0