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ACCOUNTING POLICIES - Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Recently Issued Accounting Pronouncements |  |  |
Net cash for financing activities | $ (577) | $ (1,109) | $ (521)
Net cash from operating activities | 751 | 789 | 810
Accounting Standards Update 2016-09, Statutory Tax Withholding Component |  |  |
Recently Issued Accounting Pronouncements |  |  |
Net cash for financing activities |  | (63) | (111)
Net cash from operating activities |  | 63 | $ 111
Accounting Standards Update 2017-07 |  |  |
Recently Issued Accounting Pronouncements |  |  |
Non-operating income (expense), expected to be adjusted | $ 26 | $ 32 |

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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3574-108585 + Details
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