Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2017

Stock-Based Compensation Plans

Stock-Based Compensation Disclosures (Table)

	For the three months ended March 31,
	2017		2016
	(in millions)
Compensation cost	$	22.0	$	17.9
Related income tax benefit	7.5		5.5
Capitalized as part of an asset	0.6		0.6

Nonqualified Stock Options Fair Value (Table)

	For the three months ended
	March 31, 2017
Expected volatility	27.6		%
Expected term (in years)	7.0
Risk-free interest rate	2.2		%
Expected dividend yield	2.87		%
Weighted average estimated fair value per common share	$	15.31