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GOODWILL AND OTHER INTANGIBLE ASSETS Balances and Changes in Carrying Amounts of Goodwill (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 424 | $ 544
Impairment |  | (105)
Translation | 5 | (15)
Goodwill, ending balance | 429 | 424
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |
Cumulative goodwill impairment charges, beginning balance | 232 |
Cumulative goodwill impairment charges, ending balance | 232 | 232
United States [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 192 | 192
Impairment |  | 0
Translation | 0 | 0
Goodwill, ending balance | 192 | 192
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |
Cumulative goodwill impairment charges, beginning balance | 24 |
Cumulative goodwill impairment charges, ending balance | 24 | 24
Canada [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 120 | 130
Impairment |  | 0
Translation | 5 | (10)
Goodwill, ending balance | 125 | 120
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |
Cumulative goodwill impairment charges, beginning balance | 32 |
Cumulative goodwill impairment charges, ending balance | 32 | 32
Other Businesses [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 112 | 222
Impairment |  | (105)
Translation | 0 | (5)
Goodwill, ending balance | 112 | 112
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |
Cumulative goodwill impairment charges, beginning balance | 176 |
Cumulative goodwill impairment charges, ending balance | $ 176 | $ 176

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 + Details
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