Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2018

Stock-Based Compensation Plans

Stock-Based Compensation Disclosures (Table)

	For the six months ended June 30,
	2018		2017
	(in millions)
Compensation cost	$	42.7	$	43.2
Related income tax benefit	9.3		14.2
Capitalized as part of an asset	1.1		1.2

Nonqualified Stock Options Fair Value (Table)

	For the six months ended
	June 30, 2018
Expected volatility	26.0		%
Expected term (in years)	7.0
Risk-free interest rate	2.8		%
Expected dividend yield	3.19		%
Weighted average estimated fair value per common share	$	14.85