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Pension and Other Postretirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Retirement Benefits [Abstract]

Change in Benefit Obligation and Plan Assets

A reconciliation of the change in benefit obligation and the change in plan assets for the years ended December 31, 2017 and 2016, is shown below (in millions):

	Pension																	Other Postretirement
	December 31, 2017								December 31, 2016									December 31, 2017								December 31, 2016
	U.S.				Foreign				U.S.				Foreign					U.S.				Foreign				U.S.				Foreign
Change in benefit obligation:
Benefit obligation at beginning of period	$	548.2			$	442.5			$	686.6			$	427.4				$	64.7			$	38.8			$	78.9			$	36.5
Service cost	5.0				7.3				5.6				6.5					0.1				0.5				0.2				0.5
Interest cost	21.8				15.0				29.8				15.8					2.4				1.5				3.2				1.6
Actuarial (gain) loss	8.6				11.7				3.5				27.4					(4.5		)		(0.7		)		(12.8		)		0.8
Benefits paid	(25.6		)		(23.6		)		(22.4		)		(29.1		)			(4.0		)		(1.6		)		(4.8		)		(1.9		)
Lump sum payout (1)	—				—				(154.9		)		—					—				—				—				—
Curtailment	—				0.8				—				—					(2.1		)		(0.2		)		—				—
Special termination benefits	—				—				—				—					—				0.1				—				0.3
Translation adjustment	—				36.9				—				(5.5		)			—				2.8				—				1.0
Benefit obligation at end of period	$	558.0			$	490.6			$	548.2			$	442.5				$	56.6			$	41.2			$	64.7			$	38.8

	Pension																	Other Postretirement
	December 31, 2017								December 31, 2016									December 31, 2017								December 31, 2016
	U.S.				Foreign				U.S.				Foreign					U.S.				Foreign				U.S.				Foreign
Change in plan assets:
Fair value of plan assets at beginning of period	$	412.6			$	367.1			$	522.1			$	368.2				$	—			$	—			$	—			$	—
Actual return on plan assets	49.1				28.2				30.2				21.1					—				—				—				—
Employer contributions	2.1				7.5				37.6				8.5					4.0				1.6				4.8				1.9
Benefits paid	(25.6		)		(23.6		)		(22.4		)		(29.1		)			(4.0		)		(1.6		)		(4.8		)		(1.9		)
Lump sum payout (1)	—				—				(154.9		)		—					—				—				—				—
Translation adjustment	—				27.2				—				(1.6		)			—				—				—				—
Fair value of plan assets at end of period	$	438.2			$	406.4			$	412.6			$	367.1				$	—			$	—			$	—			$	—
Funded status	$	(119.8	)		$	(84.2	)		$	(135.6	)		$	(75.4	)			$	(56.6	)		$	(41.2	)		$	(64.7	)		$	(38.8	)

Amounts Recognized in Consolidated Balance Sheet

	Pension																	Other Postretirement
	December 31, 2017								December 31, 2016									December 31, 2017								December 31, 2016
	U.S.				Foreign				U.S.				Foreign					U.S.				Foreign				U.S.				Foreign
Amounts recognized in the consolidated balance sheet:
Other long-term assets	$	0.1			$	38.1			$	—			$	40.3				$	—			$	—			$	—			$	—
Accrued liabilities	(2.1		)		(2.9		)		(2.2		)		(2.7		)			(4.2		)		(1.5		)		(4.2		)		(1.5		)
Other long-term liabilities	(117.8		)		(119.4		)		(133.4		)		(113.0		)			(52.4		)		(39.7		)		(60.5		)		(37.3		)

(1) See Lump-Sum Payout below for further discussion

Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets

As of December 31, 2017 and 2016, the majority of the Company's pension plans had accumulated benefit obligations in excess of plan assets. Information related to pension plans with accumulated benefit obligations in excess of plan assets is shown below (in millions):

December 31,	2017				2016
Projected benefit obligation	$	768.1			$	747.3
Accumulated benefit obligation	754.1				730.4
Fair value of plan assets	525.7				496.0

Amounts Recognized in Other Comprehensive Income (Loss)

Pretax amounts recognized in other comprehensive income (loss) for the years ended December 31, 2017 and 2016, are shown below (in millions):

	Pension																	Other Postretirement
	December 31, 2017								December 31, 2016									December 31, 2017								December 31, 2016
	U.S.				Foreign				U.S.				Foreign					U.S.				Foreign				U.S.				Foreign
Actuarial gains (losses) recognized:
Reclassification adjustments	$	2.6			$	5.1			$	2.7			$	3.1				$	(2.6	)		$	0.3			$	(1.3	)		$	0.2
Actuarial gain (loss) arising during the period	11.4				(6.0		)		(10.1		)		(30.0		)			4.5				0.7				12.8				(0.8		)
Effect of curtailment	—				—				—				—					2.1				0.2				—				—
Effect of settlement	0.2				0.8				33.2				0.4					—				—				—				—
Prior service credit recognized:
Reclassification adjustments	—				—				—				—					—				(0.4		)		—				(0.3		)
Translation adjustment	—				(8.2		)		—				(1.0		)			—				(0.4		)		—				(0.1		)
	$	14.2			$	(8.3	)		$	25.8			$	(27.5	)			$	4.0			$	0.4			$	11.5			$	(1.0	)

Amounts Recorded in Accumulated Other Comprehensive Loss Not Yet Recognized in Net Periodic Benefit Cost

Pretax amounts recorded in accumulated other comprehensive loss not yet recognized in net periodic benefit cost (credit) as of December 31, 2017 and 2016, are shown below (in millions):

	Pension																	Other Postretirement
	December 31, 2017								December 31, 2016									December 31, 2017								December 31, 2016
	U.S.				Foreign				U.S.				Foreign					U.S.				Foreign				U.S.				Foreign
Net unrecognized actuarial gain (loss)	$	(95.9	)		$	(109.2	)		$	(110.1	)		$	(100.9	)			$	27.0			$	(5.4	)		$	25.1			$	(6.1	)
Prior service credit	—				—				—				—					2.1				0.6				—				0.9
	$	(95.9	)		$	(109.2	)		$	(110.1	)		$	(100.9	)			$	29.1			$	(4.8	)		$	25.1			$	(5.2	)

Amounts Recorded in Accumulated Other Comprehensive Loss That Are Expected To Be Recognized As Components of Net Periodic Benefit Cost in Next Fiscal Year

Pretax amounts recorded in accumulated other comprehensive loss as of December 31, 2017, that are expected to be recognized as components of net periodic benefit cost (credit) in the year ending December 31, 2018, are shown below (in millions):

	Pension									Other Postretirement
	U.S.				Foreign					U.S.				Foreign
Net unrecognized actuarial gain (loss)	$	(2.1	)		$	(6.0	)			$	2.2			$	(0.1	)
Prior service credit	—				—					0.2				0.3
	$	(2.1	)		$	(6.0	)			$	2.4			$	0.2

Components of Net Periodic Benefit Cost (Credit)

The components of the Company’s net periodic pension benefit cost (credit) are shown below (in millions):

	Year Ended December 31,
	2017								2016								2015
Pension	U.S.				Foreign				U.S.				Foreign				U.S.				Foreign
Service cost	$	5.0			$	7.3			$	5.6			$	6.5			$	4.7			$	8.4
Interest cost	21.8				15.0				29.8				15.8				28.7				16.2
Expected return on plan assets	(28.9		)		(22.9		)		(38.1		)		(23.2		)		(39.4		)		(25.7		)
Amortization of actuarial loss	2.6				5.1				2.7				3.1				2.6				4.1
Curtailment loss	—				0.9				—				—				—				7.7
Settlement loss	0.2				0.8				34.4				0.4				0.2				—
Net periodic benefit cost (credit)	$	0.7			$	6.2			$	34.4			$	2.6			$	(3.2	)		$	10.7

The components of the Company’s net periodic other postretirement benefit cost (credit) are shown below (in millions):

	Year Ended December 31,
	2017								2016								2015
Other Postretirement	U.S.				Foreign				U.S.				Foreign				U.S.				Foreign
Service cost	$	0.1			$	0.5			$	0.2			$	0.5			$	0.2			$	0.7
Interest cost	2.4				1.5				3.2				1.6				3.1				1.7
Amortization of actuarial (gain) loss	(2.6		)		0.3				(1.3		)		0.2				(1.2		)		0.5
Amortization of prior service credit	—				(0.4		)		—				(0.3		)		—				(0.4		)
Special termination benefits	—				0.1				—				0.3				—				0.8
Net periodic benefit cost (credit)	$	(0.1	)		$	2.0			$	2.1			$	2.3			$	2.1			$	3.3

Weighted Average Actuarial Assumptions Used

The weighted average actuarial assumptions used in determining the benefit obligations are shown below:

	Pension				Other Postretirement
December 31,	2017		2016		2017		2016
Discount rate:
Domestic plans	3.6%		4.1%		3.5%		3.9%
Foreign plans	3.1%		3.3%		3.5%		3.9%
Rate of compensation increase:
Foreign plans	3.3%		3.3%		N/A		N/A

The weighted average actuarial assumptions used in determining the net periodic benefit cost (credit) are shown below:

For the year ended December 31,	2017			2016			2015
Pension
Discount rate:
Domestic plans	4.1	%		4.4	%		4.1	%
Foreign plans	3.3	%		3.8	%		3.6	%
Expected return on plan assets:
Domestic plans	7.3	%		7.5	%		7.8	%
Foreign plans	6.3	%		6.3	%		6.5	%
Rate of compensation increase:
Foreign plans	3.3	%		3.3	%		3.1	%
Other postretirement
Discount rate:
Domestic plans	3.9	%		4.2	%		3.9	%
Foreign plans	3.9	%		4.2	%		4.0	%

Sensitivity to Change in the Health Care Cost Trend Rates

The sensitivity to a 100 basis point ("bp") change in the assumed healthcare cost trend rates is shown below (in millions):

	Postretirement Benefit Obligation				Net Periodic Postretirement Cost
100 bp increase in healthcare cost trend rates	$	13.9			$	0.8
100 bp decrease in healthcare cost trend rates	$	(11.3	)		$	(0.6	)

Assumed Health Care Cost Trend Rates

The assumed healthcare cost trend rates used to measure the postretirement benefit obligation as of December 31, 2017, are shown below:

	U.S. Plans		Foreign Plans
Initial healthcare cost trend rate	6.5%		5.4%
Ultimate healthcare cost trend rate	4.5%		4.5%
Year ultimate healthcare cost trend rate achieved	2021		2031

Pension Plan Assets By Asset Category and Fair Value Hierarchy

Fair value measurements and the related valuation techniques and fair value hierarchy level for the Company’s pension plan assets measured at fair value on a recurring basis as of December 31, 2017 and 2016, are shown below (in millions):

	December 31, 2017
	Total				Level 1				Level 2				Level 3				Valuation Technique
U.S. Plans:
Equity securities -
Mutual funds	$	149.6			$	149.6			$	—			$	—			Market
Common stock	80.5				54.9				25.6				—				Market
Fixed income -
Mutual funds	101.6				101.6				—				—				Market
Corporate bonds	24.8				—				24.8				—				Market
Government obligations	23.5				—				23.5				—				Market
Preferred stock	1.5				1.0				0.5				—				Market
Cash and short-term investments	6.4				1.6				4.8				—				Market
Assets at fair value	387.9				$	308.7			$	79.2			$	—
Investments measured at net asset value -
Alternative investments	50.3
Assets at fair value	$	438.2
Foreign Plans:
Equity securities -
Equity funds	$	163.3			$	—			$	163.3			$	—			Market
Common stock	71.6				71.6				—				—				Market
Fixed income -
Fixed income funds	30.9				—				30.9				—				Market
Corporate bonds	37.0				—				37.0				—				Market
Government obligations	58.8				—				58.8				—				Market
Cash and short-term investments	9.0				3.4				5.6				—				Market
Assets at fair value	370.6				$	75.0			$	295.6			$	—
Investments measured at net asset value -
Alternative investments	35.8
Assets at fair value	$	406.4

	December 31, 2016
	Total				Level 1				Level 2				Level 3				Valuation Technique
U.S. Plans:
Equity securities -
Mutual funds	$	137.7			$	137.7			$	—			$	—			Market
Common stock	77.5				51.1				26.4				—				Market
Fixed income -
Mutual funds	86.5				86.5				—				—				Market
Corporate bonds	18.1				—				18.1				—				Market
Government obligations	29.9				—				29.9				—				Market
Preferred stock	1.4				0.9				0.5				—				Market
Cash and short-term investments	8.4				0.9				7.5				—				Market
Assets at fair value	359.5				$	277.1			$	82.4			$	—
Investments measured at net asset value -
Alternative investments	53.1
Assets at fair value	$	412.6
Foreign Plans:
Equity securities -
Equity funds	$	132.6			$	—			$	132.6			$	—			Market
Common stock	73.2				73.2				—				—				Market
Fixed income -
Fixed income funds	31.2				—				31.2				—				Market
Corporate bonds	37.1				—				37.1				—				Market
Government obligations	53.8				—				53.8				—				Market
Cash	6.0				3.2				2.8				—				Market
Assets at fair value	333.9				$	76.4			$	257.5			$	—
Investments measured at net asset value -
Alternative investments	33.2
Assets at fair value	$	367.1

Expected Benefit Payments

As of December 31, 2017, the Company’s estimate of expected benefit payments in each of the five succeeding years and in the aggregate for the five years thereafter are shown below (in millions):

	Pension									Other Postretirement
Year	U.S.				Foreign					U.S.				Foreign
2018	$	23.9			$	18.9				$	4.3			$	1.5
2019	25.4				18.7					4.3				1.5
2020	26.2				19.5					4.2				1.6
2021	26.9				19.9					4.2				1.7
2022	28.3				21.7					4.0				1.7
Five years thereafter	146.0				116.9					18.5				9.8

Information Related to Multi-Employer Pension Plans

Detailed information related to these plans is shown below (amounts in millions):

Pension Protection Act Zone Status

Contributions to Multiemployer Pension Plans

Employer Identification Number

December 31, 2017 Certification

December 31, 2016 Certification

FIP/RP Pending or Implemented

Surcharge

Year Ended December 31, 2017

Year Ended December 31, 2016

Year Ended December 31, 2015

516099782-001

Green

Red

Yes

No

$

0.6

$

0.6

$

0.5

13-6130178

Red

Red

Yes

No

0.4

0.4

0.3

X

- Definition

Tabular disclosure of the change in the benefit obligation, fair value of plan assets, and funded status of pension plans or other employee benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets.

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Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall.

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Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.

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Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized.

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Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost.

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Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets.

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Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter.

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-Publisher FASB
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Tabular disclosure of the assumed health care cost trend rates for the next year used to measure the expected cost of benefits covered by the plans, including the ultimate trend rate(s) and when that rate is expected to be achieved.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Tabular disclosure of the quantitative and qualitative information related to multiemployer plans in which the employer participates. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 80
-Section 50
-Paragraph 5
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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