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COMMITMENTS AND CONTINGENCIES 4 (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018 | Dec. 31, 2006 | Dec. 31, 2002
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Asbestos Related Liabilities [Member] |  |  |  |
Exceptions To Cap [Abstract] |  |  |  |
Loss Contingency, Receivable | $ 462 | $ 477 |  |
Bendix Asbestos Loss Contingency Liability [Member] |  |  |  |
Exceptions To Cap [Abstract] |  |  |  |
Loss Contingency, Receivable | 163 | 170 |  |
Narco Asbestos Loss Contingency Liability [Member] |  |  |  |
Loss Contingency By Nature Of Contingency [Line Items] |  |  |  |
Change in NARCO Trust liability. |  |  | $ (207) |
Estimated Liability | 902 |  |  | $ 3,200
Annual Trust Cap | 145 |  |  |
Exceptions To Cap [Abstract] |  |  |  |
Value Not Included In Cap | 100 |  |  |
Loss Contingency, Receivable | 299 | $ 307 |  |
Narco Asbestos Loss Contingency Liability [Member] | Maximum [Member] |  |  |  |
Loss Contingency By Nature Of Contingency [Line Items] |  |  |  |
Estimated Liability |  |  | 961 |
Pre-bankruptcy NARCO Liability [Member] |  |  |  |
Loss Contingency By Nature Of Contingency [Line Items] |  |  |  |
Settlement Payments | 2,000 |  |  |
Estimated Liability | 159 |  |  | 2,200
NARCO Trust Liability [Member] |  |  |  |
Loss Contingency By Nature Of Contingency [Line Items] |  |  |  |
Estimated Liability | $ 743 |  |  | 950
NARCO Trust Liability [Member] | Minimum [Member] |  |  |  |
Loss Contingency By Nature Of Contingency [Line Items] |  |  |  |
Estimated Liability |  |  | $ 743 |
Other NARCO bankruptcy-related obligations [Member] |  |  |  |
Loss Contingency By Nature Of Contingency [Line Items] |  |  |  |
Estimated Liability |  |  |  | $ 73

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