Share-Based Compensation & Deferred Compensation Arrangements (Tables)

12 Months Ended

Dec. 31, 2017

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

Reconciliation of total cost of share-based awards to the after tax effect on net income

Following is a reconciliation of the total cost associated with share-based awards recognized in the Company’s financial statements to its after tax effect on net income:

	Year Ended December 31,
(In millions)	2017		2016		2015
Total cost of share-based compensation	$	40.2	$	30.0	$	19.4
Less capitalized cost	8.6		7.0		4.8
Total in other operating expense	31.6		23.0		14.6
Less income tax benefit in earnings	12.3		9.0		5.7
After tax effect of share-based compensation	$	19.3	$	14.0	$	8.9

Performance based units outstanding

A summary of the status of awards separated between those accounted for as liabilities and equity as of December 31, 2017 and 2016, and changes during the years ended December 31, 2017 and 2016, follow:

	Equity Awards
			Wtd. Avg.
			Grant Date		Liability Awards
	Units		Fair value		Units		Fair value
Awards at January 1, 2016	15,373		$	31.63	646,487
Granted	4,052		30.19		448,176
Vested	(11,711	)	30.19		(462,203	)
Forfeited	(1,382	)	31.87		(20,880	)
Awards at December 31, 2016	6,332		$	33.42	611,580		$	52.15
Granted	1,779		36.29		385,776
Vested	(7,648	)	33.25		(395,452	)
Forfeited	—		—		(8,364	)
Awards at December 31, 2017	463		$	46.21	593,540		$	65.02