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Disposal Group, Including Discontinued Operation, Assets To Be Disposed Of

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Amount classified as assets attributable to disposal group held for sale or disposed of.

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of.

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BUSINESSES HELD FOR SALE AND DISCONTINUED OPERATIONS - Assets and Liabilities of Businesses Held for Sale, Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Feb. 25, 2019	Dec. 31, 2018	Nov. 13, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 9,910		$ 1,630
Assets	4,459		9,257
Goodwill	53,194		58,730
Liabilities held for sale	1,801		708
Liabilities	1,643		3,747
Assets planned to be disposed of				$ 20,000
BioPharma
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	8,388
Liabilities held for sale	1,091
Held for Sale or Disposed of by Sale \| BioPharma
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration		$ 21,400
Goodwill	5,548
Held for Sale, Not Discontinued Operation
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration	572
Assets	9,910		1,630
Liabilities	1,801		$ 708
Pre-tax gain (loss) on disposal	212
Liquidation of valuation allowance	$ 46