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GOODWILL AND OTHER INTANGIBLE ASSETS - Details of Intangible Assets Included in Other Long-Term Assets (Detail) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 8 years 10 months 24 days |
Cost | $ 754 | $ 753
Accumulated Amortization | 509 | 473
Net | $ 245 | 280
Customer contracts/ relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 9 years 9 months 18 days |
Cost | $ 566 | 566
Accumulated Amortization | 374 | 347
Net | $ 192 | 219
Trade names and technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 8 years 2 months 12 days |
Cost | $ 104 | 104
Accumulated Amortization | 75 | 69
Net | $ 29 | 35
Provider contracts |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 14 years 1 month 6 days |
Cost | $ 51 | 51
Accumulated Amortization | 31 | 29
Net | $ 20 | 22
Noncompetes and other |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 8 years 1 month 6 days |
Cost | $ 33 | 32
Accumulated Amortization | 29 | 28
Net | $ 4 | $ 4

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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. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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