Long-Term Incentive Employee Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Long-Term Incentive Employee Compensation Costs

LTIP costs are primarily recorded within general and administrative expenses, at fair value over the requisite service period (typically three years) on a straight-line basis and are reduced by forfeitures as they occur. These costs impacted our consolidated results of operations as follows:

	2019		2018		2017
Equity-based awards	$	15.7	$	21.6	$	18.1
Liability-based awards	2.8		1.5		2.8
Total share-based compensation expense	$	18.5	$	23.1	$	20.9

Status of Stock Option and Restricted Stock Shares

A summary of activity related to our NQOs as of December 31, 2019, 2018 and 2017 is presented below.

	2019				2018				2017
Stock Options	Shares		Weighted Average Exercise Price		Shares		Weighted Average Exercise Price		Shares		Weighted Average Exercise Price
Outstanding – January 1	0.7		$	35.04	0.9		$	34.07	1.4		$	30.57
Granted	—		—		—		—		—		—
Exercised	(0.4	)	36.08		(0.2	)	30.52		(0.5	)	22.95
Forfeited or expired	—		—		—		—		—		—
Outstanding – December 31	0.3		$	33.55	0.7		$	35.04	0.9		$	34.07
Options exercisable – December 31	0.3		$	33.55	0.5		$	36.04	0.5		$	32.24

Share-Based Compensation Summary of Stock Options

The following table summarizes information about our outstanding and exercisable stock options at December 31, 2019.

Exercise Prices	Number of shares	Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
$19.97 - $26.76	0.1	2.3	5.0
$33.01	0.1	6.1	2.9
$41.52 - $43.52	0.1	4.9	3.7
	0.3	4.3	$	11.6

Rollforward of Outstanding Restricted Stock

The table below provides a rollforward of outstanding RSUs and PSUs for each of the years ended December 31, 2019, 2018 and 2017.

	2019				2018				2017
Restricted Stock and Performance Units	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Outstanding – January 1	1.2		$	42.94	1.2		$	38.74	1.1		$	38.24
Granted	0.3		60.91		0.4		54.79		0.5		42.52
Performance adjustment(a)	0.1		44.87		—		—		—		—
Vested and issued	(0.6	)	38.03		(0.3	)	41.09		(0.2	)	41.42
Forfeited	—		—		(0.1	)	42.55		(0.2	)	41.75
Outstanding – December 31	1.0		$	51.24	1.2		$	42.94	1.2		$	38.74
Vested pending issuance	0.2		$	44.87	0.2		$	33.27	0.1		$	42.90

(a) Represents an adjustment for performance results achieved related to outstanding PSU shares that vested during the period and are pending issuance.

Number of Outstanding Equity Settled RSUs, Cash Settled RSUs and RSAs

The table below provides the number of the outstanding shares by award type as of December 31, 2019, 2018 and 2017. Cash settled PSUs outstanding are not material.

	2019	2018	2017
Equity settled RSUs	0.5	0.7	0.7
Cash settled RSUs	0.1	0.1	0.1
PSUs	0.4	0.4	0.4