Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2015

Stock-Based Compensation Plans

Stock-Based Compensation Disclosures (Table)

	For the six months ended June 30,
	2015		2014
	(in millions)
Compensation cost	$	36.1	$	33.4
Related income tax benefit	11.5		11.3
Capitalized as part of an asset	1.3		1.3

Nonqualified Stock Options Fair Value (Table)

	For the six months ended
	June 30, 2015
Expected volatility	52.2		%
Expected term (in years)	6.5
Risk-free interest rate	1.8		%
Expected dividend yield	2.81		%
Weighted average estimated fair value per common share	$	20.43