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BUSINESS ACQUISITIONS (Details) - USD ($) $ in Millions |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 07, 2017 | Dec. 01, 2017 | Sep. 28, 2017 | Jul. 14, 2017 | May 01, 2017 | Feb. 29, 2016 | Nov. 16, 2015 | Aug. 03, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consideration |  |  |  |  |  |  |  |  | $ 587 | $ 139 | $ 63
Goodwill acquired during the year |  |  |  |  |  |  |  |  | 335 | 95 | 33
Goodwill deductible for tax purposes |  |  |  |  |  |  |  |  | 273 | 95 | 32
Finite-lived intangibles |  |  |  |  |  |  |  |  | 242 | 44 | 26
Revenues |  |  |  |  |  |  |  |  | 75 |  |
Cash acquired from acquisition |  |  |  |  |  |  |  |  | 12 | 0 |
Goodwill |  |  |  |  |  |  |  |  | $ 6,335 | $ 6,000 | $ 5,905
Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  |  |  |  |  | 18 years |  |
PeaceHealth (PHL) [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill deductible for tax purposes |  |  |  |  | $ 71 |  |  |  |  |  |
Cash |  |  |  |  | 101 |  |  |  |  |  |
PeaceHealth (PHL) [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangibles |  |  |  |  | $ 30 |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 15 years |  |  |  |  |  |
Med Fusion and Clear Point [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill deductible for tax purposes |  |  |  | $ 60 |  |  |  |  |  |  |
Cash |  |  |  | 150 |  |  |  |  |  |  |
Property, plant and equipment, net |  |  |  | 31 |  |  |  |  |  |  |
Goodwill |  |  |  | 62 |  |  |  |  |  |  |
Med Fusion and Clear Point [Member] | Capital Lease Obligations [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Capital lease obligation |  |  |  | 28 |  |  |  |  |  |  |
Med Fusion and Clear Point [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangibles |  |  |  | $ 84 |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  | 15 years |  |  |  |  |  |  |
The William W. Backus Hospital and The Hospital of Central Connecticut [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash |  |  | $ 30 |  |  |  |  |  |  |  |
Cleveland HeartLab, Inc. (CHL) [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill deductible for tax purposes |  | $ 1 |  |  |  |  |  |  |  |  |
Cash |  | 94 |  |  |  |  |  |  |  |  |
Property, plant and equipment, net |  | 3 |  |  |  |  |  |  |  |  |
Cash acquired from acquisition |  | 12 |  |  |  |  |  |  |  |  |
Goodwill |  | 55 |  |  |  |  |  |  |  |  |
Deferred tax assets |  | 11 |  |  |  |  |  |  |  |  |
Deferred tax liabilities |  | 11 |  |  |  |  |  |  |  |  |
Working capital |  | 4 |  |  |  |  |  |  |  |  |
Cleveland HeartLab, Inc. (CHL) [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangibles |  | $ 32 |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  | 15 years |  |  |  |  |  |  |  |  |
Shiel Holdings LLC (Shiel) [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consideration | $ 176 |  |  |  |  |  |  |  |  |  |
Goodwill deductible for tax purposes | 100 |  |  |  |  |  |  |  |  |  |
Cash | 170 |  |  |  |  |  |  |  |  |  |
Goodwill | 106 |  |  |  |  |  |  |  |  |  |
Estimated contingent consideration | 6 |  |  |  |  |  |  |  |  |  |
Shiel Holdings LLC (Shiel) [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangibles | $ 70 |  |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life | 15 years |  |  |  |  |  |  |  |  |  |
Clinical Laboratory Partners, LLC (CLP) [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill deductible for tax purposes |  |  |  |  |  | $ 91 |  |  |  |  |
Cash |  |  |  |  |  | 135 |  |  |  |  |
Clinical Laboratory Partners, LLC (CLP) [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangibles |  |  |  |  |  | $ 43 |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  |  | 15 years |  |  |  |  |
MemorialCare [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  | $ 35 |  |  |
Superior Mobile Medics, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  | $ 27 |  |  |  |

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