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DISPOSITIONS AND HELD FOR SALE (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 01, 2015 | Jul. 18, 2013 | Sep. 30, 2013 | Sep. 30, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Investment in equity method investee |  |  |  |  | $ 33 | $ 0 | $ 0
Equity method investments carrying value |  |  |  |  | 473 | 46 |
Pre-tax gain (loss) recognized |  |  |  |  | 334 | 0 | 0
Deferred tax liability |  |  |  |  | 112 | 23 | 19
Gain on sale of royalty rights |  | $ (474) |  |  | 0 | $ 0 | $ 474
Non-core Assets Held for Sale [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Goodwill reclassified to current assets held-for-sale |  |  |  |  | 113 |  |
Enterix [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Pre-tax gain (loss) recognized |  |  | $ (40) |  |  |  |
Royalty Agreement Terms [Member] | Ibrutinib [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Proceeds from sale of intangible assets |  | $ 485 |  |  |  |  |
Q² Solutions [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Investment in equity method investee | $ 33 |  |  |  |  |  |
Equity method investment, ownership percentage | 40.00% |  |  |  |  |  |
Equity method investments carrying value |  |  |  |  | 416 |  |
Deferred tax liability |  |  |  |  | $ 145 |  |
Excess of equity in underlying net assets | $ 219 |  |  |  |  |  |
Q² Solutions [Member] | Equity Method Investment, Basis Difference [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Amount allocated to finite-lived intangible assets | $ 75 |  |  |  |  |  |
Finite-lived intangible assets, remaining amortization period | 8 years |  |  |  |  |  |
Clinical Trials [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Pre-tax gain (loss) recognized |  |  |  | $ 334 |  |  |
Deferred tax liability |  |  |  | $ 145 |  |  |

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