PENSION AND POSTRETIREMENT PLANS Pension and Postretirement Plans (Tables)

12 Months Ended

Dec. 31, 2017

Postemployment Benefits [Abstract]

Assumed Benefit Payments By Year [Text Block]

The following assumed benefit payments under the Company's post-retirement benefit plan, which reflect expected future service, as appropriate, and which were used in the calculation of projected benefit obligations, are expected to be paid as follows:

2018	$	1.3
2019	1.1
2020	1.0
2021	1.0
2022	0.9
Years 2023 and thereafter	2.8

Defined Benefit Plan Fair Value Of Plan Assets By Category [Table Text Block]

The weighted average expected long-term rate of return for the Company Plan’s assets is as follows:

	Target Allocation		Weighted Average Expected Long-Term Rate of Return
Equity securities	50.0	%	5.6	%
Fixed income securities	45.0	%	1.1	%
Other assets	5.0	%	0.1	%

The fair values of the Company Plan’s assets at December 31, 2017, and 2016, by asset category are as follows:

			Fair Value Measurements as of
			December 31, 2017
	Fair Value as of December 31, 2017		Using Fair Value Hierarchy
Asset Category			Level 1		Level 2		Level 3
Cash	$	7.4	$	7.4	$	—	$	—
Equity securities:
U.S. large cap - blend (a)	59.9		—		59.9		—
U.S. mid cap - blend (b)	23.6		—		23.6		—
U.S. small cap - blend (c)	7.7		—		7.7		—
International equity - blend (d)	39.1		—		39.1		—
Real estate (e)	12.8		—		12.8		—
Fixed income securities:
U.S. fixed income (f)	107.0		—		107.0		—
U.S inflation protection income (g)	6.2		—		6.2		—
Total fair value of the Company Plan’s assets	$	263.7	$	7.4	$	256.3	$	—

			Fair Value Measurements as of
			December 31, 2016
	Fair Value as of December 31, 2016		Using Fair Value Hierarchy
Asset Category			Level 1		Level 2		Level 3
Cash	$	6.8	$	6.8	$	—	$	—
Equity securities:
U.S. large cap - blend (a)	55.3		—		55.3		—
U.S. mid cap - blend (b)	21.2		—		21.2		—
U.S. small cap - blend (c)	7.4		—		7.4		—
International equity - blend (d)	36.1		—		36.1		—
Commodities index (h)	12.9		—		12.9		—
Fixed income securities:
U.S. fixed income (f)	101.8		—		101.8		—
U.S inflation protection income (g)	6.0		—		6.0		—
Total fair value of the Company Plan’s assets	$	247.5	$	6.8	$	240.7	$	—

a) This category represents an equity index fund not actively managed that tracks the S&P 500 Index.

b) This category represents an equity index fund not actively managed that tracks the S&P mid-cap 400 Index.

c) This category represents an equity index fund not actively managed that tracks the Russell 2000 Index.

d) This category represents an equity index fund not actively managed that tracks the MSCI ACWI ex USA Index.

e) This category represents a real estate index fund not actively managed that tracks the MSCI US REIT Index.

f) This category primarily represents bond index funds not actively managed that track the Barclays Capital U.S. Aggregate Index as well as an actively managed strategy which utilizes the Barclays Capital U.S. Aggregate Bond Index as its primary prospectus benchmark.

g) This category primarily represents a bond index fund not actively managed that tracks the Barclays Capital U.S. TIPS Index.

h) This category represents a commodities index fund not actively managed that tracks the Dow Jones - UBS Commodity Index.

Schedule of Changes in Fair Value of Plan Assets [Table Text Block]

A summary of the changes in the fair value of plan assets follows:

	2017			2016
Fair value of plan assets at beginning of year	$	247.5		$	250.6
Actual return on plan assets	29.2			13.6
Employer contributions	17.6			12.4
Benefits and administrative expenses paid	(30.6		)	(29.1		)
Fair value of plan assets at end of year	$	263.7		$	247.5

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Year ended December 31,
	2017			2016			2015
Service cost for benefits earned	$	—		$	—		$	0.1
Interest cost on benefit obligation	0.3			0.3			1.0
Net amortization and deferral	(6.7		)	(15.9		)	(10.4		)
Post-retirement medical plan costs	$	(6.4	)	$	(15.6	)	$	(9.3	)

A summary of the changes in the accumulated post-retirement benefit obligation follows:

	2017			2016
Balance at January 1	$	6.8		$	21.4
Service cost for benefits earned	—			—
Interest cost on benefit obligation	0.3			0.3
Actuarial loss	2.5			(0.2		)
Benefits paid	(1.0		)	(1.3		)
Plan amendment	—			(13.4		)
Balance at December 31	$	8.6		$	6.8
Recorded as:
Accrued expenses and other	$	1.2		$	1.0
Other liabilities	7.4			5.8
	$	8.6		$	6.8

The effect on operations for both the Company Plan and the PEP are summarized as follows:

	Year ended December 31,
	2017			2016			2015
Service cost for benefits earned	$	5.5		$	4.9		$	3.9
Interest cost on benefit obligation	14.4			15.5			15.1
Expected return on plan assets	(16.3		)	(16.7		)	(18.3		)
Net amortization and deferral	11.0			11.2			11.3
Defined-benefit plan costs	$	14.6		$	14.9		$	12.0

A summary of the changes in the projected benefit obligations of the Company Plan and the PEP are summarized as follows:

	2017			2016
Balance at January 1	$	366.5		$	363.1
Service cost	5.5			4.9
Interest cost	14.4			15.5
Actuarial loss	12.2			12.1
Benefits and administrative expenses paid	(30.6		)	(29.1		)
Balance at December 31	$	368.0		$	366.5

Schedule of Net Funded Status [Table Text Block]

he net funded status of the Company Plan and the PEP at December 31:

	2017		2016
Funded status	$	104.3	$	119.0
Recorded as:
Accrued expenses and other	$	2.2	$	2.0
Other liabilities	102.1		117.0
	$	104.3	$	119.0

Schedule of Assumptions Used [Table Text Block]

Weighted average assumptions used in the accounting for the Company Plan and the PEP are summarized as follows:

	2017		2016		2015
Discount rate	3.7	%	4.2	%	4.0	%
Expected long term rate of return	6.8	%	6.8	%	7.0	%

Schedule of Expected Benefit Payments [Table Text Block]

2018	$	0.1
2019	0.1
2020	0.1
2021	0.1
2022	0.1
2023 and thereafter	0.2

The following assumed benefit payments under the Company Plan and PEP, which were used in the calculation of projected benefit obligations, are expected to be paid as follows:

2018	$	27.2
2019	26.6
2020	26.2
2021	25.5
2022	25.4
Years 2023 and thereafter	118.2

	U.K. Plans		German Plan
2018	$	4.4	$	0.3
2019	5.3		0.4
2020	5.5		0.6
2021	6.0		0.6
2022	7.4		0.7
Years 2023 and thereafter	43.0		3.7