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Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Defined Benefit Pension Plans

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

Defined benefit plans - The components of net periodic defined benefit pension cost are presented in the table below.

	Three months ended								Nine months ended
	September 30,								September 30,
	2015				2016				2015				2016
	(In millions)
Service cost	$	2.8			$	2.5			$	8.4			$	7.5
Interest cost		3.8				3.9				11.6				11.6
Expected return on plan assets		(4.4	)			(3.9	)			(13.4	)			(11.6	)
Amortization of prior service cost		.2				.1				.6				.2
Recognized actuarial losses		3.4				2.9				10.3				8.9
Total	$	5.8			$	5.5			$	17.5			$	16.6

OPEB

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

Postretirement benefits - The components of net periodic postretirement benefits other than pension (OPEB) cost are presented in the table below.  

	Three months ended								Nine months ended
	September 30,								September 30,
	2015				2016				2015				2016
	(In millions)
Service cost	$	-			$	-			$	.1			$	.1
Interest cost		.1				.1				.2				.2
Amortization of prior service credit		(.2	)			(.2	)			(.6	)			(.6	)
Recognized actuarial loss		.1				.1				.2				.2
Total	$	-			$	-			$	(.1	)		$	(.1	)

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ 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=65897934&loc=d3e1928-114920

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