EMPLOYEE BENEFIT PLANS (Pension plan assets measured at fair value) (Details) (USD $) | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | $1,530 | [1] | $1,466 | [1] | $1,318 |
U.S Equities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 242 | [2] | 216 | [2] | |
International Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 624 | [2] | 632 | [2] | |
Other Equity Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 12 | [2] | |
Corporate Bonds and Notes [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 145 | [3] | 102 | [3] | |
US government securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 1 | [3] | |
Non-U.S. Government Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 306 | [3] | 270 | [3] | |
Mortgage backed securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 3 | [3] | 4 | [3] | |
Insurance Contracts [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 19 | [4] | 22 | [4] | |
Fixed Income Securities, Common Trust Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 8 | | 28 | | |
Short-term Investments [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 18 | [5] | 23 | [5] | |
Real Estate Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 111 | [6] | 101 | [6] | |
Hedge Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 54 | [7] | 55 | [7] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 290 | [1] | 302 | [1] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | U.S Equities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 4 | [2] | 5 | [2] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | International Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 269 | [2] | 264 | [2] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Other Equity Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 12 | [2] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Corporate Bonds and Notes [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [3] | 0 | [3] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | US government securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 0 | | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Non-U.S. Government Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [3] | 0 | [3] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Mortgage backed securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [3] | 0 | | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Insurance Contracts [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [4] | 0 | [4] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Fixed Income Securities, Common Trust Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | | 0 | | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Short-term Investments [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 17 | [5] | 21 | [5] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Real Estate Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [6] | 0 | [6] | |
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] | Hedge Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [7] | 0 | [7] | |
Significant Other Observable Inputs, Level 2 [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 1,185 | [1] | 1,109 | [1] | |
Significant Other Observable Inputs, Level 2 [Member] | U.S Equities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 238 | [2] | 211 | [2] | |
Significant Other Observable Inputs, Level 2 [Member] | International Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 355 | [2] | 368 | [2] | |
Significant Other Observable Inputs, Level 2 [Member] | Other Equity Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 0 | [2] | |
Significant Other Observable Inputs, Level 2 [Member] | Corporate Bonds and Notes [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 145 | [3] | 102 | [3] | |
Significant Other Observable Inputs, Level 2 [Member] | US government securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 1 | | |
Significant Other Observable Inputs, Level 2 [Member] | Non-U.S. Government Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 306 | [3] | 270 | [3] | |
Significant Other Observable Inputs, Level 2 [Member] | Mortgage backed securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 3 | [3] | 4 | | |
Significant Other Observable Inputs, Level 2 [Member] | Insurance Contracts [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 18 | [4] | 21 | [4] | |
Significant Other Observable Inputs, Level 2 [Member] | Fixed Income Securities, Common Trust Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 8 | | 28 | | |
Significant Other Observable Inputs, Level 2 [Member] | Short-term Investments [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 1 | [5] | 2 | [5] | |
Significant Other Observable Inputs, Level 2 [Member] | Real Estate Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 111 | [6] | 101 | [6] | |
Significant Other Observable Inputs, Level 2 [Member] | Hedge Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [7] | 1 | [7] | |
Significant Unobservable Inputs, Level 3 [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 55 | [1] | 55 | [1] | |
Significant Unobservable Inputs, Level 3 [Member] | U.S Equities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [2] | 0 | [2] | |
Significant Unobservable Inputs, Level 3 [Member] | International Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [2] | 0 | [2] | |
Significant Unobservable Inputs, Level 3 [Member] | Other Equity Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 0 | [2] | |
Significant Unobservable Inputs, Level 3 [Member] | Corporate Bonds and Notes [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [3] | 0 | [3] | |
Significant Unobservable Inputs, Level 3 [Member] | US government securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | | | 0 | [3] | |
Significant Unobservable Inputs, Level 3 [Member] | Non-U.S. Government Securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [3] | 0 | [3] | |
Significant Unobservable Inputs, Level 3 [Member] | Mortgage backed securities [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [3] | 0 | [3] | |
Significant Unobservable Inputs, Level 3 [Member] | Insurance Contracts [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 1 | [4] | 1 | [4] | |
Significant Unobservable Inputs, Level 3 [Member] | Fixed Income Securities, Common Trust Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | | 0 | | |
Significant Unobservable Inputs, Level 3 [Member] | Short-term Investments [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [5] | 0 | [5] | |
Significant Unobservable Inputs, Level 3 [Member] | Real Estate Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | 0 | [6] | 0 | [6] | |
Significant Unobservable Inputs, Level 3 [Member] | Hedge Funds [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Fair value of plan assets | $54 | [7] | $54 | [7] | |
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[1] | For additional information about our pension plan assets, including the determination of fair value, refer to Note 9. |
[2] | Equity securities are comprised of the following investment types: (1) common stock; (2) preferred stock; and (3) common trust funds. Investments in common and preferred stocks are valued using quoted market prices multiplied by the number of shares owned. Investments in common trust funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date (as of December 31, 2014, it is not probable that we will sell these investments at an amount other than net asset value). |
[3] | nvestments other than those held in common trust funds are valued utilizing a market approach that includes various valuation techniques and sources such as value generation models, broker quotes in active and non-active markets, benchmark yields and securities, reported trades, issuer spreads, and/or other applicable reference data. |
[4] | Insurance contracts are valued at book value, which approximates fair value, and is calculated using the prior year balance adjusted for investment returns and changes in cash flows. |
[5] | Short-term investments are valued at $1.00/unit, which approximates fair value. Amounts are generally invested in actively managed common trust funds or interest-bearing accounts. |
[6] | Real estate funds are valued at net asset value, which is calculated using the most recent partnership financial reports, adjusted, as appropriate, for any lag between the date of the financial reports and the measurement date (as of December 31, 2014, it is not probable that we will sell these investments at an amount other than net asset value). |
[7] | Hedge funds are held in private investment funds. These investments are valued based primarily on the net asset value, which is provided by the management of each private investment fund, multiplied by the number of shares held as of the measurement date, net of any accrued management and incentive fees due to the fund managers (as of December 31, 2014, it is not probable that we will sell these investments at an amount other than net asset value). |