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DIVESTITURE - Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 16, 2016 | Sep. 24, 2017 | Sep. 25, 2016 | Sep. 24, 2017 | Sep. 25, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Net gain on divestiture of business segment |  |  |  | $ 0 | $ 1,234
Fair value of shares of common stock tendered and retired |  |  |  |  | 2,497
One-time special cash payment received |  |  |  | 0 | 1,800
IS&GS | Restatement Adjustment |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Corporate overhead costs reclassified to and included in earnings |  |  | $ 17 |  | 82
IS&GS | Continuing operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Non-service pension costs reclassified to and included in continuing operations |  |  | 11 |  | 54
Discontinued Operations, Disposed of by Sale | IS&GS |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Reduction to common stock outstanding (as a percent) | 3.00% |  |  |  |
Net gain on divestiture of business segment |  |  | $ 1,200 |  | 1,200
Fair value of shares of common stock tendered and retired | $ 2,500 |  |  |  | 2,500
One-time special cash payment received | 1,800 |  |  |  | 1,800
Net book value | 3,000 |  |  |  |
Other adjustments | $ 100 |  |  |  | $ 100
Working capital and tax adjustments within net earnings from discontinued operations |  | $ 0 |  | $ 0 |
Discontinued Operations, Disposed of by Sale | IS&GS | Lockheed Martin |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Common stock exchanged (in shares) | 9,369,694 |  |  |  |

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