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BUSINESS ACQUISITIONS (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 11, 2019 | Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Cash paid for business acquisitions |  |  | $ 0 | $ 54,000,000 | $ 56,000,000 | $ 224,000,000 |  |
Goodwill |  | $ 6,617,000,000 | 6,617,000,000 |  | $ 6,617,000,000 |  | $ 6,563,000,000 | $ 6,335,000,000
Customer Relationships |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Intangible assets, useful life |  |  |  |  | 18 years |  |  |
Boyce & Bynum |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Consideration | $ 61,000,000 |  |  |  |  |  |  |
Cash paid for business acquisitions | 55,000,000 |  |  |  |  |  |  |
Goodwill | 41,000,000 |  |  |  |  |  |  |
Goodwill, expected tax deductible amount | 35,000,000 |  |  |  |  |  |  |
Boyce & Bynum | Customer Relationships |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Intangible assets | $ 20,000,000 |  |  |  |  |  |  |
Intangible assets, useful life | 15 years |  |  |  |  |  |  |
Boyce & Bynum | Other Operating Income |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Gain due to reduction in liability |  |  | 6,000,000 |  |  |  |  |
Boyce & Bynum | Fair Value, Inputs, Level 3 |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Contingent consideration | $ 6,000,000 | 0 | $ 0 |  | $ 0 |  |  |
Oxford Immunotec, Inc. |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Adjustment, increase to goodwill |  | 13,000,000 |  |  |  |  |  |
Adjustment, decrease to intangible assets |  | 11,000,000 |  |  |  |  |  |
Adjustment, other assets and liabilities |  | $ 2,000,000 |  |  |  |  |  |

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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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