|
PENSIONS AND POSTRETIREMENT BENEFITS (Effect of Fair Value Measurements Using Significant Unobservable Inputs (Level 3) on Changes in Pension Plan Assets) (Details) (USD $)
In Millions, unless otherwise specified
|
12 Months Ended |
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
|
|
| Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block] |
The following represents the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets for the years ended December 31, 2014 and 2013:
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(In Millions) |
|
Year Ended December 31, 2014 |
|
Hedge Funds |
|
Private Equity
Funds
|
|
Structured
Credit Fund
|
|
Real
Estate
|
|
Total |
Beginning balance — January 1, 2014 |
$ |
57.6 |
|
|
$ |
29.1 |
|
|
$ |
61.0 |
|
|
$ |
40.9 |
|
|
$ |
188.6 |
|
Actual return on plan assets: |
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|
|
|
|
|
|
|
|
|
Relating to assets still held at
the reporting date
|
3.1 |
|
|
3.2 |
|
|
4.4 |
|
|
5.2 |
|
|
15.9 |
|
|
Relating to assets sold during
the period
|
(1.5 |
) |
|
3.0 |
|
|
— |
|
|
— |
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|
1.5 |
|
Purchases |
— |
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|
1.4 |
|
|
— |
|
|
5.4 |
|
|
6.8 |
|
Sales |
— |
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|
(5.5 |
) |
|
— |
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|
(1.5 |
) |
|
(7.0 |
) |
Ending balance — December 31, 2014 |
$ |
59.2 |
|
|
$ |
31.2 |
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|
$ |
65.4 |
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|
$ |
50.0 |
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|
$ |
205.8 |
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(In Millions) |
|
Year Ended December 31, 2013 |
|
Hedge Funds |
|
Private Equity
Funds
|
|
Structured
Credit Fund
|
|
Real
Estate
|
|
Total |
Beginning balance — January 1, 2013 |
$ |
85.6 |
|
|
$ |
29.3 |
|
|
$ |
56.2 |
|
|
$ |
29.4 |
|
|
$ |
200.5 |
|
Actual return on plan assets: |
|
|
|
|
|
|
|
|
|
|
Relating to assets still held at
the reporting date
|
4.5 |
|
|
(2.1 |
) |
|
33.5 |
|
|
5.1 |
|
|
41.0 |
|
|
Relating to assets sold during
the period
|
(1.2 |
) |
|
5.2 |
|
|
(28.7 |
) |
|
(0.4 |
) |
|
(25.1 |
) |
Purchases |
66.0 |
|
|
14.7 |
|
|
27.5 |
|
|
36.8 |
|
|
145.0 |
|
Sales |
(97.3 |
) |
|
(18.0 |
) |
|
(27.5 |
) |
|
(30.0 |
) |
|
(172.8 |
) |
Ending balance — December 31, 2013 |
$ |
57.6 |
|
|
$ |
29.1 |
|
|
$ |
61.0 |
|
|
$ |
40.9 |
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$ |
188.6 |
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| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Roll Forward] |
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| Fair value of plan assets — beginning of year |
$ 188.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
|
$ 200.5us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
|
| Actual return on plan assets: |
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|
| Relating to assets still held at the reporting date |
15.9us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
|
41.0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
|
| Relating to assets sold during the period |
1.5us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
|
(25.1)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
|
| Purchases |
6.8us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
|
145.0us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
|
| Sales |
(7.0)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
|
(172.8)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
|
| Fair value of plan assets — end of year |
205.8us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
|
188.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
|
| Hedge Funds [Member] |
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Roll Forward] |
|
|
| Fair value of plan assets — beginning of year |
57.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
85.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
| Actual return on plan assets: |
|
|
| Relating to assets still held at the reporting date |
3.1us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
4.5us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
| Relating to assets sold during the period |
(1.5)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
(1.2)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
| Purchases |
0us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
66.0us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
| Sales |
0us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
(97.3)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
| Fair value of plan assets — end of year |
59.2us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
57.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_HedgeFundsMember
|
| Private Equity Funds [Member] |
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Roll Forward] |
|
|
| Fair value of plan assets — beginning of year |
29.1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
29.3us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
| Actual return on plan assets: |
|
|
| Relating to assets still held at the reporting date |
3.2us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
(2.1)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
| Relating to assets sold during the period |
3.0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
5.2us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
| Purchases |
1.4us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
14.7us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
| Sales |
(5.5)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
(18.0)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
| Fair value of plan assets — end of year |
31.2us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
29.1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_PrivateEquityFundsMember
|
| Structured Finance [Member] |
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Roll Forward] |
|
|
| Fair value of plan assets — beginning of year |
61.0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
56.2us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
| Actual return on plan assets: |
|
|
| Relating to assets still held at the reporting date |
4.4us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
33.5us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
| Relating to assets sold during the period |
0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
(28.7)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
| Purchases |
0us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
27.5us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
| Sales |
0us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
(27.5)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
| Fair value of plan assets — end of year |
65.4us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
61.0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_StructuredFinanceMember
|
| Real Estate [Member] |
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Roll Forward] |
|
|
| Fair value of plan assets — beginning of year |
40.9us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
29.4us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
| Actual return on plan assets: |
|
|
| Relating to assets still held at the reporting date |
5.2us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
5.1us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
| Relating to assets sold during the period |
0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
(0.4)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
| Purchases |
5.4us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
36.8us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
| Sales |
(1.5)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
(30.0)us-gaap_DefinedBenefitPlanDivestituresPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
| Fair value of plan assets — end of year |
$ 50.0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
$ 40.9us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_RealEstateMember
|
| Veba Trust [Member] |
|
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
|
|
| Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block] |
The following represents the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets for the year ended December 31, 2014 and 2013:
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|
(In Millions) |
|
Year Ended December 31, 2014 |
|
Hedge
Funds
|
|
Private Equity
Funds
|
|
Structured Credit Fund |
|
Real
Estate
|
|
Total |
Beginning balance — January 1, 2014 |
$ |
24.6 |
|
|
$ |
6.0 |
|
|
$ |
13.5 |
|
|
$ |
13.2 |
|
|
$ |
57.3 |
|
Actual return on plan assets: |
|
|
|
|
|
|
|
|
|
Relating to assets still held at the reporting date |
0.5 |
|
|
1.0 |
|
|
0.4 |
|
|
0.9 |
|
|
2.8 |
|
Relating to assets sold during the period |
0.6 |
|
|
0.4 |
|
|
0.4 |
|
|
0.5 |
|
|
1.9 |
|
Purchases |
— |
|
|
0.1 |
|
|
— |
|
|
— |
|
|
0.1 |
|
Sales |
(14.2 |
) |
|
(1.3 |
) |
|
(8.2 |
) |
|
(5.9 |
) |
|
(29.6 |
) |
Ending balance — December 31, 2014 |
$ |
11.5 |
|
|
$ |
6.2 |
|
|
$ |
6.1 |
|
|
$ |
8.7 |
|
|
$ |
32.5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(In Millions) |
|
Year Ended December 31, 2013 |
|
Hedge
Funds
|
|
Private Equity
Funds
|
|
Structured Credit Fund |
|
Real
Estate
|
|
Total |
Beginning balance — January 1, 2014 |
$ |
23.2 |
|
|
$ |
6.2 |
|
|
$ |
12.5 |
|
|
$ |
15.9 |
|
|
$ |
57.8 |
|
Actual return on plan assets: |
|
|
|
|
|
|
|
|
|
Relating to assets still held at the reporting date |
2.1 |
|
|
0.2 |
|
|
2.4 |
|
|
2.8 |
|
|
7.5 |
|
Relating to assets sold during the period |
(0.7 |
) |
|
0.4 |
|
|
(1.4 |
) |
|
(0.7 |
) |
|
(2.4 |
) |
Purchases |
22.5 |
|
|
0.3 |
|
|
11.0 |
|
|
14.2 |
|
|
48.0 |
|
Sales |
(22.5 |
) |
|
(1.1 |
) |
|
(11 |
) |
|
(19.0 |
) |
|
(53.6 |
) |
Ending balance — December 31, 2014 |
$ |
24.6 |
|
|
$ |
6.0 |
|
|
$ |
13.5 |
|
|
$ |
13.2 |
|
|
$ |
57.3 |
|
|
|