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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($) reporting_units	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Goodwill [Line Items]
Goodwill and intangible assets	$ 1,100,000,000	$ 1,100,000,000	$ 1,100,000,000
Goodwill and intangible assets, percent of total assets	19.00%	19.00%	20.00%
Number of reporting units, operating performance below expectations | reporting_units	2
Number of reporting units, subject to impairment test of finite-lived intangible assets | reporting_units	2
Amortization of intangible assets		$ 67,000,000	$ 82,000,000
CANADA [Member]
Goodwill [Line Items]
Impairment of goodwill or indefinitely-lived intangible assets	$ 0
Reporting unit, percentage of fair value in excess of carrying amount	31.00%	31.00%
Other Businesses [Member]
Goodwill [Line Items]
Impairment of goodwill or indefinitely-lived intangible assets	$ 0
Reporting unit, percentage of fair value in excess of carrying amount	15.00%	15.00%

X

- Definition

Intangible Assets, Net (Including Goodwill), Percent Of Total Assets

+ References

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- Definition

Number of Reporting Units, Subject To Impairment Test Of Finite-lived Intangible Assets

+ References

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Number of Reporting Units, Subject To Operating Performance Below Expectations

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.

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- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

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