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Postretirement Benefits Schedule of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Oct. 01, 2016 | [1] | Jul. 02, 2016 | [1] | Apr. 02, 2016 | [1] | Dec. 31, 2015 | Oct. 03, 2015 | [1] | Jul. 04, 2015 | [1] | Apr. 04, 2015 | [1] | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement Loss | $ 55.1 | [1] | $ 0.0 | $ 0.0 | $ 0.0 | $ 82.3 | [1] | $ 0.0 | $ 0.0 | $ 0.0 | $ 55.1 | $ 82.3 | $ 27.9
Defined Benefit Plan, (Increase) Decrease in Pension Expense due to Change in Assumption, Asset Return |  |  |  |  |  |  |  |  |  |  | 5.6 |  |
Pension Plans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Cost |  |  |  |  |  |  |  |  |  |  | 35.8 | 47.9 | 58.6
Expected Return on Plan Assets |  |  |  |  |  |  |  |  |  |  | (38.5) | (55.7) | (58.8)
Amortization of Prior Service Credits |  |  |  |  |  |  |  |  |  |  | 0.0 | 0.0 | 0.0
Amortization of Net Actuarial Losses |  |  |  |  |  |  |  |  |  |  | 17.4 | 19.5 | 15.0
Settlement Loss |  |  |  |  |  |  |  |  |  |  | 55.1 | 82.3 | 27.9
Net Pension and Other Benefit Costs |  |  |  |  |  |  |  |  |  |  | $ 69.8 | $ 94.0 | $ 42.7
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate |  |  |  |  |  |  |  |  |  |  | 3.58% | 3.95% | 4.85%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 4.00% |  |  |  |  | 4.40% |  |  |  |  | 4.00% | 4.40% |
Defined Benefit Plan, (Increase) Decrease in Interest Costs for Pension and Other Postretirement Benefits due to Change in Discount Rate Methodology |  |  |  |  |  |  |  |  |  |  | $ 8.2 |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets |  |  |  |  |  |  |  |  |  |  | 5.25% | 6.00% | 6.25%
Other Postretirement Benefit Plans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Cost |  |  |  |  |  |  |  |  |  |  | $ 1.4 | $ 1.8 | $ 2.0
Expected Return on Plan Assets |  |  |  |  |  |  |  |  |  |  | 0.0 | 0.0 | 0.0
Amortization of Prior Service Credits |  |  |  |  |  |  |  |  |  |  | (0.7) | (0.7) | (0.9)
Amortization of Net Actuarial Losses |  |  |  |  |  |  |  |  |  |  | 0.0 | 1.3 | 0.0
Settlement Loss |  |  |  |  |  |  |  |  |  |  | 0.0 | 0.0 | 0.0
Net Pension and Other Benefit Costs |  |  |  |  |  |  |  |  |  |  | $ 0.7 | $ 2.4 | $ 1.1
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate |  |  |  |  |  |  |  |  |  |  | 3.30% | 3.75% | 4.40%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 3.93% |  |  |  |  | 4.23% |  |  |  |  | 3.93% | 4.23% |
Defined Benefit Plan, (Increase) Decrease in Interest Costs for Pension and Other Postretirement Benefits due to Change in Discount Rate Methodology |  |  |  |  |  |  |  |  |  |  | $ 0.4 |  |
[1] | Pension settlement charges are discussed in Note 17 – Postretirement Benefits in the Notes to Consolidated Financial Statements.

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- Definition Defined benefit plan, increase (decrease) in interest costs for pension and other postretirement benefits due to change in discount rate methodology. Beginning in 2016, a "spot rate approach" is being used to calculate pension interest costs. The spot rate approach applies separate discount rates for each projected benefit payment in the calculation of pension interest costs. + References No definition available. + Details
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- Definition The amount of gains or losses recognized in net periodic benefit cost. + 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)(4) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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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) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 2: 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 + Details
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- Definition The interest rate used to adjust for the time value of money for the plan. + 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The interest rate used to adjust for the time value of money. + 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512046 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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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. + Details
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- Definition An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512171 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. + 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)(2) -URI http://asc.fasb.org/extlink&oid=65897934&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 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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