Defined Benefit Plan, Number Of Non Qualified Pension Plans Prior To Reorganization

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- Definition

Percentage of company's qualified pension plans on a GAAP accounting basis.

+ References

No definition available.

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

+ References

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ 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 (d)(5)(ii)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2709-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(5)(iv)(01)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

+ References

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

+ References

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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

+ References

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- References

No definition available.

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- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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Pension and Postretirement Benefit Costs (Details) $ in Millions	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2017 USD ($)	Apr. 01, 2017 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Apr. 02, 2017 plan
Defined benefit pension plans
Components of net periodic benefit cost
Funding threshold	80.00%				80.00%
Number of non-qualified pension plans prior to reorganization \| plan							2
Contributions by employer					$ 30.1
Defined Contribution Plan, Employer Discretionary Contribution Amount					25.0
Successor \| Defined benefit pension plans
Components of net periodic benefit cost
Service cost for benefits earned	$ 0.5				1.1
Interest cost on projected or accumulated postretirement benefit obligation	9.4				18.7
Expected return on plan assets	(11.2)				(22.4)
Amortization of prior service cost and net actuarial loss	0.0				0.0
Net periodic pension or postretirement benefit (income) cost	(1.3)				(2.6)
Successor \| Postretirement benefit plans
Components of net periodic benefit cost
Service cost for benefits earned	2.3				4.6
Interest cost on projected or accumulated postretirement benefit obligation	8.2				16.5
Amortization of prior service cost and net actuarial loss	0.0				0.0
Net periodic pension or postretirement benefit (income) cost	$ 10.5				$ 21.1
Predecessor \| Defined benefit pension plans
Components of net periodic benefit cost
Service cost for benefits earned		$ 0.6	$ 0.7			$ 2.0
Interest cost on projected or accumulated postretirement benefit obligation		9.7	10.3			31.0
Expected return on plan assets		(11.0)	(11.3)			(33.9)
Amortization of prior service cost and net actuarial loss		6.4	6.3			18.8
Net periodic pension or postretirement benefit (income) cost		5.7	$ 6.0			17.9
Predecessor \| Postretirement benefit plans
Components of net periodic benefit cost
Service cost for benefits earned		2.3		$ 2.6		7.8
Interest cost on projected or accumulated postretirement benefit obligation		8.4		8.8		26.4
Amortization of prior service cost and net actuarial loss		3.2		2.4		7.1
Net periodic pension or postretirement benefit (income) cost		$ 13.9		$ 13.8		$ 41.3