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

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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Divestiture - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 0		$ 137
Gain (loss) on disposition of business	336	$ 0
Advanced Bioprocessing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of business	$ 336
Disposal Group, Held-for-sale, Not Discontinued Operations \| Advanced Bioprocessing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale			$ 137