| Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] | Period [Axis] |
|---|
2016-01-01 - 2016-12-31 |
|---|
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] | |
Changes in Benefit Obligations and Plan Assets for Pension and Postretirement Plans | The following table sets forth the changes in our benefit obligations and plan assets for our pension and postretirement plans. The table also presents the line items in the consolidated balance sheets where the related assets and liabilities are recorded: | | | | | | | | | | | | | | | | | | | | Pension Plans | | Postretirement Benefit Obligations | | | 2016 | | 2015 | | 2016 | | 2015 | Change in Benefit Obligation: | | | | | | | | | Benefit Obligation at January 1 | | $ | (1,989.1 | ) | | $ | (2,093.4 | ) | | $ | (17.2 | ) | | $ | (21.3 | ) | Service Cost | | (3.0 | ) | | (4.2 | ) | | (0.7 | ) | | (0.8 | ) | Interest Cost | | (59.7 | ) | | (73.8 | ) | | (0.4 | ) | | (0.5 | ) | Benefits Paid | | 103.1 |
| | 100.0 |
| | 2.3 |
| | 4.9 |
| Direct Subsidies Received | | — |
| | — |
| | — |
| | (3.9 | ) | Settlement | | 1.8 |
| | — |
| | — |
| | — |
| Divestitures | | 1.2 |
| | — |
| | — |
| | — |
| Plan Participant Contributions | | (0.3 | ) | | (0.4 | ) | | (0.9 | ) | | (1.5 | ) | Actuarial (Loss) Gain | | (19.4 | ) | | (4.8 | ) | | 0.4 |
| | 5.3 |
| Assumption Change | | (48.7 | ) | | 72.0 |
| | 0.1 |
| | 0.6 |
| Effect of Changes in Foreign Currency Exchange Rates | | 49.9 |
| | 15.5 |
| | — |
| | — |
| Benefit Obligation at December 31 | | $ | (1,964.2 | ) | | $ | (1,989.1 | ) | | $ | (16.4 | ) | | $ | (17.2 | ) | Change in Plan Assets: | | | | | | | | | Fair Value of Plan Assets at January 1 | | $ | 1,438.9 |
| | $ | 1,516.9 |
| | $ | — |
| | $ | — |
| Actual Return on Plan Assets | | 112.5 |
| | 13.5 |
| | — |
| | — |
| Employer Contributions | | 27.6 |
| | 22.2 |
| | 1.4 |
| | (0.5 | ) | Direct Subsidies Received | | — |
| | — |
| | — |
| | 3.9 |
| Plan Participant Contributions | | 0.3 |
| | 0.4 |
| | 0.9 |
| | 1.5 |
| Settlement | | (1.7 | ) | | — |
| | — |
| | — |
| Divestitures | | (0.9 | ) | | — |
| | — |
| | — |
| Benefits Paid | | (103.1 | ) | | (100.0 | ) | | (2.3 | ) | | (4.9 | ) | Effect of Changes in Foreign Currency Exchange Rates | | (47.3 | ) | | (14.1 | ) | | — |
| | — |
| Fair Value of Plan Assets at December 31 | | $ | 1,426.3 |
| | $ | 1,438.9 |
| | $ | — |
| | $ | — |
| Net Funded Status of Plan | | $ | (537.9 | ) | | $ | (550.2 | ) | | $ | (16.4 | ) | | $ | (17.2 | ) |
| | | | | | | | | | | | | | | | | | | | Pension Plans | | Postretirement Benefit Obligations | | | At December 31, | | | 2016 | | 2015 | | 2016 | | 2015 | Amounts Recorded in the Consolidated Balance Sheets: | | | | | | | | | Prepaid Pension Costs | | $ | 2.1 |
| | $ | 1.7 |
| | $ | — |
| | $ | — |
| Pension and Postretirement Benefits | | (519.2 | ) | | (534.6 | ) | | (14.7 | ) | | (15.2 | ) | Accrued Payroll | | (20.8 | ) | | (17.3 | ) | | (1.7 | ) | | (2.0 | ) | Net Amount Recognized | | $ | (537.9 | ) | | $ | (550.2 | ) | | $ | (16.4 | ) | | $ | (17.2 | ) | Accumulated Benefit Obligation | | $ | 1,950.2 |
| | $ | 1,977.0 |
| | N/A |
| | N/A |
| Amount Recognized in Accumulated Other Comprehensive Income Consists of: | | | | | | | | | Actuarial Loss (Gain) | | $ | 1,132.5 |
| | $ | 1,120.7 |
| | $ | (12.8 | ) | | $ | (14.0 | ) | Prior Service Cost (Credit) | | 4.5 |
| | 4.8 |
| | (0.9 | ) | | (2.5 | ) | Total Amount Recognized - Pretax | | $ | 1,137.0 |
| | $ | 1,125.5 |
| | $ | (13.7 | ) | | $ | (16.5 | ) |
|
Underfunded or Unfunded Accumulated Benefit Obligation and Related Projected Benefit Obligation | At December 31, 2016 and 2015, our underfunded or unfunded accumulated benefit obligation and the related projected benefit obligation were as follows: | | | | | | | | | | | | 2016 | | 2015 | Accumulated Benefit Obligation | | $ | 1,928.6 |
| | $ | 1,956.1 |
| Fair Value of Plan Assets | | 1,401.2 |
| | 1,414.6 |
| Unfunded Accumulated Benefit Obligation | | $ | 527.4 |
| | $ | 541.5 |
| Projected Benefit Obligation | | $ | 1,941.2 |
| | $ | 1,966.5 |
|
|
Components of Net Periodic (Income) Cost Associated with Pension Plans and Postretirement Benefit Obligations | The following table sets forth the components of net periodic pension cost associated with our pension plans and our postretirement benefit obligations: | | | | | | | | | | | | | | | | | | | | | | | | | | Pension Plans | | Postretirement Benefit Obligations | | For the Years Ended December 31, | | 2016 | | 2015 | | 2014 | | 2016 | | 2015 | | 2014 | Components of Net Periodic Cost (Income): | | | | | | | | | | | | Service Cost | $ | 3.0 |
| | $ | 4.2 |
| | $ | 3.5 |
| | $ | 0.7 |
| | $ | 0.8 |
| | $ | 0.8 |
| Interest Cost | 59.7 |
| | 73.8 |
| | 78.9 |
| | 0.4 |
| | 0.5 |
| | 0.7 |
| Expected Return on Plan Assets | (96.5 | ) | | (102.6 | ) | | (100.2 | ) | | — |
| | — |
| | — |
| Amortization of Prior Service Cost (Credit) | 0.2 |
| | 0.2 |
| | 0.3 |
| | (1.6 | ) | | (1.6 | ) | | (2.4 | ) | Recognized Actuarial Loss (Gain) | 38.8 |
| | 42.5 |
| | 36.1 |
| | (1.6 | ) | | (1.3 | ) | | (1.1 | ) | Curtailment Charge | — |
| | — |
| | 0.1 |
| | — |
| | — |
| | — |
| Net Periodic Cost (Income) | $ | 5.2 |
| | $ | 18.1 |
| | $ | 18.7 |
| | $ | (2.1 | ) | | $ | (1.6 | ) | | $ | (2.0 | ) |
|
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income | The following table sets forth other changes in plan assets and benefit obligations recognized in Other Comprehensive Income: | | | | | | | | | | | | | | | | | | | | Pension Plans | | Postretirement Benefit Obligations | | | At December 31, | | | 2016 | | 2015 | | 2016 | | 2015 | Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income | | | | | | | | | Amortization of Actuarial (Loss) Gain, Before Tax (Benefit) Expense of $12.2 in 2016 and $15.7 in 2015 | | $ | (38.8 | ) | | $ | (42.5 | ) | | $ | 1.6 |
| | $ | 1.3 |
| Amortization of Prior Service (Cost) Credit, Before Tax (Benefit) Expense of $(0.4) in 2016 and $(0.5) in 2015 | | $ | (0.2 | ) | | $ | (0.2 | ) | | $ | 1.6 |
| | $ | 1.6 |
| Actuarial (Loss) Gain Arising During the Year, Before Tax (Benefit) Expense of $(16.5) in 2016 and $(6.1) in 2015 | | $ | (50.6 | ) | | $ | (21.9 | ) | | $ | 0.4 |
| | $ | 5.9 |
| Prior Service Credit (Cost) Arising During the Year, No Tax Impact | | $ | 0.1 |
| | $ | 0.1 |
| | $ | — |
| | $ | 0.1 |
|
|
Estimated Amortization from Accumulated Other Comprehensive Income | The following table sets forth estimated 2017 amortization from AOCI: | | | | | | | | | | | | | | Postretirement Benefit Obligations | | | Pension Plans | | Estimated 2017 amortization from Accumulated Other Comprehensive Income | | | | | Actuarial Loss (Gain) | | $ | 40.1 |
| | $ | (1.5 | ) | Prior Service Cost (Credit) | | 0.2 |
| | (0.9 | ) | Total | | $ | 40.3 |
| | $ | (2.4 | ) |
|
Assumptions used to Determine Pension Plan and Postreitrement Benefit Plan Obligations | The following table sets forth the significant weighted-average assumptions we used to determine the projected benefit obligation and the periodic benefit cost: | | | | | | | | | | | | | | | | | | | | | | Pension Plans | | Postretirement Benefit Obligations | | | 2016 | | 2015 | | 2014 | | 2016 | | 2015 | | 2014 | Discount Rate for Determining Projected Benefit Obligation at December 31 | | 3.62 | % | | 3.84 | % | | 3.62 | % | | 3.28 | % | | 3.26 | % | | 2.95 | % | Discount Rate in Effect for Determining Service Cost | | 3.88 | % | | 3.61 | % | | 4.41 | % | | 3.66 | % | | N/A |
| | N/A |
| Discount Rate in Effect for Determining Interest Cost | | 3.06 | % | | 3.61 | % | | 4.41 | % | | 2.61 | % | | N/A |
| | N/A |
| Weighted Average Expected Long-Term Return on Plan Assets | | 7.10 | % | | 7.39 | % | | 7.34 | % | | N/A |
| | N/A |
| | N/A |
| Rate of Compensation Increase for Determining Projected Benefit Obligation at December 31 | | 4.40 | % | | 5.97 | % | | 5.99 | % | | N/A |
| | N/A |
| | N/A |
| Rate of Compensation Increase for Determining Net Pension Cost | | 6.29 | % | | 5.97 | % | | 5.78 | % | | N/A |
| | N/A |
| | N/A |
|
|
Fair Value Hierarchy of Plan Assets at Fair Value | The following table sets forth by level, within the fair value hierarchy, the plan assets at fair value as of December 31, 2016: | | | | | | | | | | | | | | | | | | Asset Category | | Quoted Prices in Active Markets for Identical Assets (Level I) | | Significant Other Observable Inputs (Level II) | | Significant Unobservable Inputs (Level III) | | Total | Common and Preferred Stocks: | | | | | | | | | Consumer | | $ | 39.5 |
| | $ | — |
| | $ | — |
| | $ | 39.5 |
| Energy | | 64.1 |
| | — |
| | — |
| | 64.1 |
| Financial | | 80.0 |
| | — |
| | — |
| | 80.0 |
| Health Care | | 42.8 |
| | — |
| | — |
| | 42.8 |
| Industrial | | 22.5 |
| | — |
| | — |
| | 22.5 |
| Information Technology | | 15.3 |
| | — |
| | — |
| | 15.3 |
| Other | | 11.7 |
| | — |
| | — |
| | 11.7 |
| Preferred Stocks | | 3.7 |
| | — |
| | — |
| | 3.7 |
| Total Common and Preferred Stocks | | $ | 279.6 |
| | $ | — |
| | $ | — |
| | $ | 279.6 |
| Bonds: | | | | | | | | | Corporate Bonds | | $ | — |
| | $ | 64.3 |
| | $ | — |
| | $ | 64.3 |
| Other Bonds | | — |
| | 24.7 |
| | — |
| | 24.7 |
| Total Corporate and Other Bonds | | $ | — |
| | $ | 89.0 |
| | $ | — |
| | $ | 89.0 |
| U.S. Government Bonds and Notes | | $ | 75.7 |
| | $ | — |
| | $ | — |
| | $ | 75.7 |
| Foreign Government Bonds and Mortgage Backed Securities: | | | | | | | | | Foreign Government Bonds | | — |
| | 3.7 |
| | — |
| | 3.7 |
| U.S. Agency and Mortgage Backed Securities | | — |
| | 53.3 |
| | — |
| | 53.3 |
| Total Government Bonds and U.S. Agency and Mortgage Backed Securities | | $ | 75.7 |
| | $ | 57.0 |
| | $ | — |
| | $ | 132.7 |
| State and Local Obligations | | — |
| | 5.5 |
| | — |
| | 5.5 |
| Venture Capital Funds | | — |
| | — |
| | 1.0 |
| | 1.0 |
| Real Estate Investment Trusts | | 3.3 |
| | — |
| | — |
| | 3.3 |
| Short-Term Investment Funds | | — |
| | 30.4 |
| | — |
| | 30.4 |
| Total | | $ | 358.6 |
| | $ | 181.9 |
| | $ | 1.0 |
| | $ | 541.5 |
| Other Investments Measured at Net Asset Value (a) | | | | | | | | | Commingled Funds: | | | | | | | | | Commingled Equity Funds | | | | | | | | $ | 439.3 |
| Commingled Fixed Income Funds | | | | | | | | 396.0 |
| Total Commingled Funds Measured at Net Asset Value | | | | | | | | 835.3 |
| Total Real Estate Funds Measured at Net Asset Value | | | | | | | | 49.5 |
| Total Other Investments Measured at Net Asset Value | | | | | | | | $ | 884.8 |
| Total Investments at Fair Value | | | | | | | | $ | 1,426.3 |
|
| | (a) | In accordance with ASU No. 2015-07, certain investments that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. |
The following table sets forth by level, within the fair value hierarchy, the plan assets at fair value as of December 31, 2015: | | | | | | | | | | | | | | | | | | Asset Category | | Quoted Prices in Active Markets for Identical Assets (Level I) | | Significant Other Observable Inputs (Level II) | | Significant Unobservable Inputs (Level III) | | Total | Common and Preferred Stocks: | | | | | | | | | Consumer | | $ | 38.0 |
| | $ | — |
| | $ | — |
| | $ | 38.0 |
| Energy | | 12.7 |
| | — |
| | — |
| | 12.7 |
| Financial | | 74.2 |
| | — |
| | — |
| | 74.2 |
| Health Care | | 26.9 |
| | — |
| | — |
| | 26.9 |
| Industrial | | 37.0 |
| | — |
| | — |
| | 37.0 |
| Information Technology | | 59.8 |
| | — |
| | — |
| | 59.8 |
| Other | | 9.7 |
| | — |
| | — |
| | 9.7 |
| Preferred Stocks | | 4.1 |
| | — |
| | — |
| | 4.1 |
| Total Common and Preferred Stocks | | $ | 262.4 |
| | $ | — |
| | $ | — |
| | $ | 262.4 |
| Bonds: | | | | | | | | | Corporate Bonds | | $ | — |
| | $ | 66.4 |
| | $ | — |
| | $ | 66.4 |
| Other Bonds | | — |
| | 23.5 |
| | — |
| | 23.5 |
| Total Corporate and Other Bonds | | $ | — |
| | $ | 89.9 |
| | $ | — |
| | $ | 89.9 |
| U.S. Government Bonds and Notes | | $ | 68.2 |
| | $ | — |
| | $ | — |
| | $ | 68.2 |
| Foreign Government Bonds and Mortgage Backed Securities: | | | | | | | | | Foreign Government Bonds | | — |
| | 2.6 |
| | — |
| | 2.6 |
| U.S. Agency and Mortgage Backed Securities | | — |
| | 47.7 |
| | — |
| | 47.7 |
| Total Government Bonds and U.S. Agency and Mortgage Backed Securities | | $ | 68.2 |
| | $ | 50.3 |
| | $ | — |
| | $ | 118.5 |
| State and Local Obligations | | — |
| | 6.1 |
| | — |
| | 6.1 |
| Real Estate Investment Trusts | | 2.8 |
| | — |
| | — |
| | 2.8 |
| Short-Term Investment Funds | | — |
| | 22.2 |
| | — |
| | 22.2 |
| Total | | $ | 333.4 |
| | $ | 168.5 |
| | $ | — |
| | $ | 501.9 |
| Other Investments Measured at Net Asset Value (a) | | | | | | | | | Commingled Funds: | | | | | | | | | Commingled Equity Funds | | | | | | | | $ | 460.7 |
| Commingled Fixed Income Funds | | | | | | | | 429.2 |
| Total Commingled Funds Measured at Net Asset Value | | | | | | | | 889.9 |
| Total Real Estate Funds Measured at Net Asset Value | | | | | | | | 47.1 |
| Total Other Investments Measured at Net Asset Value | | | | | | | | $ | 937.0 |
| Total Investments at Fair Value | | | | | | | | $ | 1,438.9 |
|
| | (a) | In accordance with ASU No. 2015-07, certain investments that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. |
|
Weighted Average Asset Allocations and Target Asset Allocation by Asset Category | The following table sets forth the weighted average asset allocations and target asset allocations by asset category, as of the measurement dates of the plans: | | | | | | | | | | | | | | | | Asset Allocations | | Target Asset Allocations | | | As of December 31, | | | 2016 | | 2015 | | 2016 | | 2015 | Equity Securities | | 52 | % | | 51 | % | | 50 | % | | 50 | % | Debt Securities | | 44 |
| | 46 |
| | 46 |
| | 47 |
| Alternative Investments | | 4 |
| | 3 |
| | 4 |
| | 3 |
| Total | | 100 | % | | 100 | % | | 100 | % | | 100 | % |
|
Expected Benefit Payments from Pension Plans and Postretirement Plans through 2021 | The following table summarizes expected benefit payments from our pension plans and postretirement plans through 2026. Actual benefit payments may differ from expected benefit payments. These amounts are net of expected plan participant contributions: | | | | | | | | | | | | Pension Plans | | Postretirement Benefits Plan | 2017 | | $ | 119.4 |
| | $ | 1.8 |
| 2018 | | $ | 118.4 |
| | $ | 1.7 |
| 2019 | | $ | 134.9 |
| | $ | 1.6 |
| 2020 | | $ | 126.6 |
| | $ | 1.5 |
| 2021 | | $ | 121.8 |
| | $ | 1.5 |
| 2022 - 2026 | | $ | 592.2 |
| | $ | 7.2 |
|
|
Healthcare Trend Assumptions used in Determining Year End Benefit Obligation | The following table presents healthcare trend assumptions used to determine the year end benefit obligation: | | | | | | | | | | 2016 | | 2015 | Medical (1) | | 5.5 | % | | 5.5 | % | Prescription Drug (1) | | 9.5 | % | | 7.5 | % |
| | (1) | The rates are assumed to decrease to 5.0% in 2026 and remain at that level thereafter. |
|
Effects of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates | A one-percentage-point change in the assumed health care cost trend rates would have the following effects: | | | | | | | | | | | | 1% Point | | | Increase | | Decrease | Benefit Obligations at End of Year | | $ | 0.5 |
| | $ | (0.4 | ) | Service Cost Plus Interest Cost | | $ | — |
| | $ | — |
|
|