Benefit Plans and Other Postretirement Benefits (Tables)

12 Months Ended

Dec. 31, 2015

	December 31,
	2015			2014
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	676.5		$	560.1
Service cost	12.5			10.8
Interest cost	22.8			24.1
Acquisitions	1.2			7.0
Plan amendments	0.4			—
Actuarial (gain) loss	(19.0		)	123.1
Foreign exchange translation	(18.2		)	(18.7		)
Benefits paid	(31.2		)	(29.9		)

Projected benefit obligation at end of year	645.0			676.5


Change in plan assets:
Fair value of plan assets at beginning of year	409.4			392.5
Actual return on plan assets	(3.7		)	27.7
Employer contributions	24.1			23.8
Foreign exchange translation	(6.4		)	(4.7		)
Benefits paid	(31.2		)	(29.9		)

Fair value of plan assets at end of year	392.2			409.4


Funded status	$	(252.8	)	$	(267.1	)

	Year Ended December 31,
	2015			2014			2013
Components of net pension expense:
Service cost	$	9.3		$	8.2		$	8.5
Interest cost	22.8			24.1			20.9
Expected return on plan assets	(29.1		)	(28.5		)	(24.8		)
Net amortization of actuarial losses	28.0			18.6			25.5

Net pension expense	$	31.0		$	22.4		$	30.1

	Weighted-average assumptions used to determine benefit obligations at December 31,
	Pension Benefits				Other Benefits
	2015		2014		2015		2014
Discount rate:
U.S. plans	4.11	%	3.75	%	3.71	%	3.50	%
International plans	3.14	%	2.91	%	n/a		n/a
Rate of compensation increase:
U.S. plans	3.00	%	3.00	%	n/a		n/a
International plans	1.48	%	1.45	%	n/a		n/a

	Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31,
	Pension Benefits						Other Benefits
	2015		2014		2013		2015		2014		2013
Discount rate:
U.S. plans	3.75	%	4.60	%	3.75	%	3.50	%	4.15	%	3.45	%
International plans	2.91	%	4.09	%	3.97	%	n/a		n/a		n/a
Expected long-term return on assets:
U.S. plans	8.00	%	8.00	%	8.00	%	n/a		n/a		n/a
International plans	5.47	%	5.99	%	5.50	%	n/a		n/a		n/a
Rate of compensation increase:
U.S. plans	3.00	%	3.00	%	3.00	%	n/a		n/a		n/a
International plans	1.45	%	1.48	%	2.57	%	n/a		n/a		n/a

	Fair Value Measurements at December 31, 2015
Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)

Equity securities:
U.S. equities — large cap	$	108.2	$	82.3	$	25.9	$	—
U.S. equities — small/mid cap and other	22.7		—		22.7		—
International equities — growth	46.0		46.0		—		—
International equities — other	52.3		6.9		45.4		—

	229.2		135.2		94.0		—


Alternative investment funds	31.5		—		31.5		—

Fixed income securities:
U.S. fixed income securities — intermediate term	58.7		58.7		—		—
U.S. fixed income securities — high yield	18.9		—		18.9		—
International fixed income securities — other	37.2		—		37.2		—

	114.8		58.7		56.1		—


Cash and cash equivalents	16.7		16.7		—		—

Total	$	392.2	$	210.6	$	181.6	$	—

	Fair Value Measurements at December 31, 2014
Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)

Equity securities:
U.S. equities — large cap	$	106.6	$	80.9	$	25.7	$	—
U.S. equities — small/mid cap and other	23.0		—		23.0		—
International equities — growth	46.9		46.9		—		—
International equities — other	50.7		—		50.7		—

	227.2		127.8		99.4		—


Alternative investment funds	40.1		—		40.1		—

Fixed income securities:
U.S. fixed income securities — intermediate term	59.1		59.1		—		—
U.S. fixed income securities — high yield	20.2		—		20.2		—
International fixed income securities — other	40.6		—		40.6		—

	119.9		59.1		60.8		—


Cash and cash equivalents	22.2		22.2		—		—

Total	$	409.4	$	209.1	$	200.3	$	—