RETIREMENT AND OTHER POSTRETIREMENT BENEFITS - Plan Assets (Details) (Successor [Member], USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | $1,112 | | $1,029 | |
Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 154 | | 137 | |
Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 881 | | 807 | |
Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 77 | | 85 | |
Registered Investment Company [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 120 | [1] | 94 | [1] |
Registered Investment Company [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 120 | [1] | 94 | [1] |
Registered Investment Company [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Registered Investment Company [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Registered Investment Company, Global Equity [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 63 | [1] | 52 | [1] |
Registered Investment Company, Global Equity [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 63 | [1] | 52 | [1] |
Registered Investment Company, Global Equity [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Registered Investment Company, Global Equity [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Registered Investment Company, Emerging Markets Equity [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 57 | [1] | 42 | [1] |
Registered Investment Company, Emerging Markets Equity [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 57 | [1] | 42 | [1] |
Registered Investment Company, Emerging Markets Equity [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Registered Investment Company, Emerging Markets Equity [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Corporate Debt Securities [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 53 | [2] | 53 | [2] |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [2] | 0 | [2] |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 53 | [2] | 53 | [2] |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [2] | 0 | [2] |
Corporate Debt Securities, Aaa to A minus [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 25 | [2] | 28 | [2] |
Corporate Debt Securities, Aaa to A minus [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [2] | 0 | [2] |
Corporate Debt Securities, Aaa to A minus [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 25 | [2] | 28 | [2] |
Corporate Debt Securities, Aaa to A minus [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [2] | 0 | [2] |
Corporate Debt, Baa plus to Ba minus [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 28 | [2] | 25 | [2] |
Corporate Debt, Baa plus to Ba minus [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [2] | 0 | [2] |
Corporate Debt, Baa plus to Ba minus [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 28 | [2] | 25 | [2] |
Corporate Debt, Baa plus to Ba minus [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [2] | 0 | [2] |
Common/Collective Trusts [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 761 | [1] | 684 | [1] |
Common/Collective Trusts [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common/Collective Trusts [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 761 | [1] | 684 | [1] |
Common/Collective Trusts [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Short Term [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 3 | [1] | 2 | [1] |
Common and Collective Trusts, Short Term [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Short Term [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 3 | [1] | 2 | [1] |
Common and Collective Trusts, Short Term [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, US Equity [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 406 | [1] | 346 | [1] |
Common and Collective Trusts, US Equity [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, US Equity [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 406 | [1] | 346 | [1] |
Common and Collective Trusts, US Equity [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Global Equity [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 56 | [1] | 50 | [1] |
Common and Collective Trusts, Global Equity [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Global Equity [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 56 | [1] | 50 | [1] |
Common and Collective Trusts, Global Equity [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, International Equity, Excluding US [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 134 | [1] | 109 | [1] |
Common and Collective Trusts, International Equity, Excluding US [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, International Equity, Excluding US [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 134 | [1] | 109 | [1] |
Common and Collective Trusts, International Equity, Excluding US [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Long Bond [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 116 | [1] | 127 | [1] |
Common and Collective Trusts, Long Bond [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Long Bond [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 116 | [1] | 127 | [1] |
Common and Collective Trusts, Long Bond [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Treasuries [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 46 | [1] | 50 | [1] |
Common and Collective Trusts, Treasuries [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Common and Collective Trusts, Treasuries [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 46 | [1] | 50 | [1] |
Common and Collective Trusts, Treasuries [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [1] | 0 | [1] |
Government Securities, Other [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 13 | [3] | 17 | [3] |
Government Securities, Other [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Government Securities, Other [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 13 | [3] | 17 | [3] |
Government Securities, Other [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Government Securities, Other, Aaa to A minus [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 11 | [3] | 14 | [3] |
Government Securities, Other, Aaa to A minus [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Government Securities, Other, Aaa to A minus [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 11 | [3] | 14 | [3] |
Government Securities, Other, Aaa to A minus [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Government Securities, Other, Baa plus to Baa minus [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 2 | [3] | 3 | [3] |
Government Securities, Other, Baa plus to Baa minus [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Government Securities, Other, Baa plus to Baa minus [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 2 | [3] | 3 | [3] |
Government Securities, Other, Baa plus to Baa minus [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Other Types of Investments [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 165 | | 181 | |
Other Types of Investments [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 34 | | 43 | |
Other Types of Investments [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 54 | | 53 | |
Other Types of Investments [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 77 | | 85 | |
US Treasury and Government [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 54 | [3] | 53 | [3] |
US Treasury and Government [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
US Treasury and Government [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 54 | [3] | 53 | [3] |
US Treasury and Government [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [3] | 0 | [3] |
Hedge Funds, Multi-strategy [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 60 | [4] | 68 | [4] |
Hedge Funds, Multi-strategy [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [4] | 0 | [4] |
Hedge Funds, Multi-strategy [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [4] | 0 | [4] |
Hedge Funds, Multi-strategy [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 60 | [4] | 68 | [4] |
Common Stock, Real Estate [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 33 | [5] | 42 | [5] |
Common Stock, Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 33 | [5] | 42 | [5] |
Common Stock, Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [5] | 0 | [5] |
Common Stock, Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [5] | 0 | [5] |
Partnership/Joint Venture Interests [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 17 | [6] | 17 | [6] |
Partnership/Joint Venture Interests [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [6] | 0 | [6] |
Partnership/Joint Venture Interests [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | [6] | 0 | [6] |
Partnership/Joint Venture Interests [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 17 | [6] | 17 | [6] |
Cash and Cash Equivalents [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 1 | | 1 | |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 1 | | 1 | |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | 0 | | 0 | |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | ' | | ' | |
Defined Benefit Plan Disclosure [Line Items] | ' | | ' | |
Fair value of plan assets | $0 | | $0 | |
|
[1] | Common/collective trusts and registered investment companies are valued using a Net Asset Value (bNAVb) provided by the manager of each fund. The NAV is based on the underlying net assets owned by the fund, divided by the number of shares or units outstanding. The fair value of the underlying securities within the fund, which are generally traded on an active market, are valued at the closing price reported on the active market on which those individual securities are traded. |
[2] | Corporate debt is valued primarily based on observable market quotations for similar bonds at the closing price reported on the active market on which the individual securities are traded. When such quoted prices are not available, the bonds are valued using a discounted cash flows approach using current yields on similar instruments of issuers with similar credit ratings. |
[3] | Government securities are valued based on yields currently available on comparable securities of issuers with similar credit ratings. When quoted prices are not available for identical or similar securities, the security is valued under a discounted cash flow approach that maximizes observable inputs, such as current yields of similar instruments, but includes adjustments for certain risks that may not be observable, such as credit and liquidity risks. |
[4] | Hedge funds are private investment vehicles valued using a NAV provided by the manager of each fund. A variety of unobservable valuation methodologies, including discounted cash flow, market multiple and cost valuation approaches, are employed by the fund manager to value the investments. |
[5] | Common stocks are valued based on quoted market prices at the closing price as reported on the active market on which the individual securities are traded. |
[6] | Partnership/joint ventures are valued based on the fair value of the underlying securities within the fund, which include investments both traded on an active market and not traded on an active market. For those investments that are traded on an active market, the values are based on the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiple and cost valuation approaches, are employed by the fund manager to value investments. |