Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2019

Stock-Based Compensation Plans

Stock-Based Compensation Disclosures (Table)

	For the year ended December 31,
	2019		2018		2017
	(in millions)
Compensation cost	$	78.7	$	77.5	$	80.6
Related income tax benefit		16.8		16.7		27.1
Capitalized as part of an asset		1.7		1.9		2.5

Nonqualified Stock Options Status (Table)

		Weighted-
		average
	Number of options	exercise price		Intrinsic value
	(in millions)			(in millions)
Options outstanding as of January 1, 2019	4.2	$	46.77
Granted	1.2		53.09
Exercised	0.1		32.59
Options outstanding as of December 31, 2019	5.3	$	48.42	$	46.6
Options vested or expected to vest as of December 31, 2019	5.3	$	48.41	$	46.6
Options exercisable as of December 31, 2019	3.5	$	44.07	$	44.4

Nonqualified Stock Options Remaining Contractual Lives and Range of Exercise Prices (Table)

		Weighted-
	Number of options	average remaining
Range of exercise prices	outstanding	contractual life
	(in millions)
$21.70 - $32.32	0.7	2.5
$32.33 - $42.95	1.0	5.3
$42.96 - $53.58	2.2	7.1
$53.59 - $64.22	1.4	7.7
$21.70 - $64.22	5.3

Nonqualified Stock Options Fair Value (Table)

	For the year ended December 31,
Options	2019			2018			2017
Expected volatility		23.3	%		26.0	%		27.6	%
Expected term (in years)		7.0			7.0			7.0
Risk-free interest rate		2.6	%		2.8	%		2.2	%
Expected dividend yield		4.07	%		3.19	%		2.87	%
Weighted average estimated fair value	$	10.00		$	14.85		$	15.31

Nonvested Performance Share Awards Activity (Table)

	Number of	Weighted-
	performance	average grant-date
	share awards	fair value
	(in millions)
Nonvested performance share awards as of January 1, 2019	0.6	$	52.50
Granted	0.2		53.09
Vested	0.3		37.38
Nonvested performance share awards as of December 31, 2019	0.5	$	59.26

Nonvested Restricted Stock Units Activity (Table)

	Number of	Weighted-
	restricted	average grant-date
	stock units	fair value
	(in millions)
Nonvested restricted stock units as of January 1, 2019	2.7	$	52.17
Granted	1.1		53.17
Vested	1.2		38.07
Nonvested restricted stock units as of December 31, 2019	2.6	$	59.15