PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Basis of Fair Value Measurements of Pension Plan Assets) (Details) - Defined Benefit Pension Plans [Member] - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | $ 3,097 | $ 3,173 | $ 3,543 |
Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 346 | 354 | |
Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 2,002 | 2,072 | |
Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 749 | 747 | 746 |
Cash and Cash Equivalents [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 242 | 174 | |
Cash and Cash Equivalents [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 1 | |
Cash and Cash Equivalents [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 242 | 173 | |
Cash and Cash Equivalents [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Equity Securities [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 544 | 622 | |
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 346 | 353 | |
Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 192 | 264 | |
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6 | 5 | 4 |
U.S. equity | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 252 | 272 | |
U.S. equity | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 235 | 237 | |
U.S. equity | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 17 | 35 | |
U.S. equity | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Non-U.S. equity - developed countries | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 165 | 207 | |
Non-U.S. equity - developed countries | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 67 | 71 | |
Non-U.S. equity - developed countries | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 98 | 136 | |
Non-U.S. equity - developed countries | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Emerging markets | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 129 | 140 | |
Emerging markets | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 43 | 45 | |
Emerging markets | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 80 | 90 | |
Emerging markets | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6 | 5 | |
Convertible bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1 | | |
Convertible bonds | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1 | | |
Convertible bonds | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | | |
Convertible bonds | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | | |
Equity derivatives | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | (3) | 3 | |
Equity derivatives | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Equity derivatives | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | (3) | 3 | |
Equity derivatives | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fixed Income Securities [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1,498 | 1,552 | |
Fixed Income Securities [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fixed Income Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1,421 | 1,501 | |
Fixed Income Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 77 | 51 | 33 |
U.S. government and municipalities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 838 | 574 | |
U.S. government and municipalities | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. government and municipalities | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 838 | 574 | |
U.S. government and municipalities | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. agency mortgage backed securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 50 | 56 | |
U.S. agency mortgage backed securities | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. agency mortgage backed securities | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 50 | 56 | |
U.S. agency mortgage backed securities | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Corporates - investment grade | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 423 | 677 | |
Corporates - investment grade | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Corporates - investment grade | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 423 | 677 | |
Corporates - investment grade | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Non-U.S. governments - developed countries | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 4 | 5 | |
Non-U.S. governments - developed countries | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Non-U.S. governments - developed countries | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 4 | 5 | |
Non-U.S. governments - developed countries | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Non-U.S. corporates - developed countries | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 81 | 146 | |
Non-U.S. corporates - developed countries | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Non-U.S. corporates - developed countries | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 81 | 146 | |
Non-U.S. corporates - developed countries | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Emerging markets debt | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 7 | 12 | |
Emerging markets debt | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Emerging markets debt | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 7 | 12 | |
Emerging markets debt | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Other asset-backed securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 33 | 13 | |
Other asset-backed securities | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Other asset-backed securities | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 33 | 13 | |
Other asset-backed securities | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Other fixed income funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 77 | 51 | |
Other fixed income funds | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Other fixed income funds | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Other fixed income funds | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 77 | 51 | |
Fixed income derivatives | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | (16) | 15 | |
Fixed income derivatives | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fixed income derivatives | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | (16) | 15 | |
Fixed income derivatives | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
High yield bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1 | 3 | |
High yield bonds | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
High yield bonds | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1 | 3 | |
High yield bonds | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Alternative Investments [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 807 | 783 | |
Alternative Investments [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Alternative Investments [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 160 | 114 | |
Alternative Investments [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 647 | 669 | $ 687 |
Real estate | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 329 | 284 | |
Real estate | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Real estate | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Real estate | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 329 | 284 | |
Private equity | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 214 | 220 | |
Private equity | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Private equity | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Private equity | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 214 | 220 | |
Absolute return | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 264 | 279 | |
Absolute return | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Absolute return | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 160 | 114 | |
Absolute return | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 104 | 165 | |
Total other securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6 | 42 | |
Total other securities | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Total other securities | Significant Other Observable Inputs (Level 2) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | (13) | 20 | |
Total other securities | Significant Unobservable Inputs (Level 3) [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | $ 19 | $ 22 | |