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Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

Compensation And Retirement Disclosure [Abstract]

Schedule of components of period benefit costs

The components of periodic benefit costs for the three and nine months ended September 30, 2017 and September 30, 2016 are as follows:

		Three Months Ended September 30, 2017												Nine Months Ended September 30, 2017
										Postretirement												Postretirement
		U.S.				Non-U.S.				Health and				U.S.				Non-U.S.				Health and
		Pension				Pension				Other				Pension				Pension				Other
($ in millions)		Plans				Plans				Plans				Plans				Plans				Plans
Service cost - benefits earned during the period		$	—			$	0.4			$	0.1			$	—			$	1.3			$	0.2
Interest cost of projected benefit obligations			1.3				0.6				0.2				4.0				1.6				0.7
Expected return on plan assets			(1.2	)			(0.4	)			—				(3.7	)			(1.1	)			—
Amortization of prior service cost			—				—				(0.3	)			—				—				(1.0	)
Amortization of actuarial net loss			0.8				0.4				0.1				2.4				1.2				0.3
Net periodic benefit costs		$	0.9			$	1.0			$	0.1			$	2.7			$	3.0			$	0.2

		Three Months Ended September 30, 2016												Nine Months Ended September 30, 2016
										Postretirement												Postretirement
		U.S.				Non-U.S.				Health and				U.S.				Non-U.S.				Health and
		Pension				Pension				Other				Pension				Pension				Other
($ in millions)		Plans				Plans				Plans				Plans				Plans				Plans
Service cost - benefits earned during the period		$	—			$	0.5			$	0.1			$	—			$	1.4			$	0.2
Interest cost of projected benefit obligations			1.7				0.6				0.4				5.6				2.8				1.3
Expected return on plan assets			(1.4	)			(0.5	)			—				(4.6	)			(2.2	)			—
Amortization of actuarial net loss			0.9				0.2				—				3.0				0.9				—
Net periodic benefit costs			1.2				0.8				0.5				4.0				2.9				1.5
Net periodic benefit costs associated with MFS			—				—				—				0.4				0.4				0.1
Net periodic benefit costs included in continuing    operations		$	1.2			$	0.8			$	0.5			$	3.6			$	2.5			$	1.4

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ 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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