Defined Benefit Plan Unrecognized Actuarial Net Gains Losses

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- Definition

Other Comprehensive Income, Defined Benefit Plan, Prior Service Cost Credit, Curtailments

+ References

No definition available.

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- Definition

Other Comprehensive Income, Defined Benefit Plan, Prior Service Cost Credit, Settlement

+ References

No definition available.

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- Definition

Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period

+ References

No definition available.

+ Details

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- Definition

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (j-k)
-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580

Reference 4: 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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-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580

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- Definition

After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise.

+ References

No definition available.

+ Details

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- Definition

Amount after tax of cost (credit) due to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as a component of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Prior Service Cost
-URI http://asc.fasb.org/extlink&oid=49177896

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- Definition

Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Gain or Loss
-URI http://asc.fasb.org/extlink&oid=49168827

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-Publisher FASB
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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

+ 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)(1)
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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Prior Service Cost
-URI http://asc.fasb.org/extlink&oid=49177896

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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

The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Curtailment
-URI http://asc.fasb.org/extlink&oid=6520938

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-Publisher FASB
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Defined benefits Plans - Amounts in Accumulated Other Comprehensive Income that have not yet been Recognized as Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Sep. 30, 2015	Mar. 31, 2014	Jun. 30, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss	$ 2.5			$ 8.6	$ 13.7	$ 5.2
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss				(54.1)	133.1
Net actuarial loss due to curtailment				(0.6)
Pension Benefits [Member] \| Other Accumulated Other Comprehensive Income
Defined Benefit Plan Disclosure [Line Items]
Beginning Balance		$ (34.3)		76.5	(34.3)
Actuarial (gain) loss				(9.0)	(12.5)
Current year actuarial gain				4.2	123.3
Net actuarial loss due to curtailment				(0.6)
Ending Balance				71.1	76.5	(34.3)
Beginning Balance		0.5		0.4	0.5
Amortization				(0.1)	(0.1)
Prior service cost recognition due to curtailment				(0.2)
Ending Balance				0.1	0.4	0.5
Total at December 31, 2015				71.2
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss		0.6	$ 4.0	(1.3)	3.9
Net actuarial loss due to curtailment		3.5
Postretirement Benefits [Member] \| Other Accumulated Other Comprehensive Income
Defined Benefit Plan Disclosure [Line Items]
Beginning Balance		(0.5)		1.2	(0.5)
Actuarial (gain) loss				0.4	(1.2)
Current year actuarial gain				(1.3)	2.9
Ending Balance				0.3	1.2	(0.5)
Beginning Balance		$ (33.5)		(21.2)	(33.5)
Prior service cost recognition due to plan amendments				0.1	(15.3)
Amortization				13.5	27.6
Prior service credit recognition due to settlement				1.2
Ending Balance				(6.4)	$ (21.2)	$ (33.5)
Total at December 31, 2015				$ (6.1)