Divestiture - Additional Information (Detail) - Discovery Labware - USD ($) $ in Millions		3 Months Ended
Oct. 31, 2012	Jun. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of productive assets	$ 740
Additional payment received from the sale		$ 16
Pre-tax gain on sale	577
After-tax gain on sale	355
Amount of goodwill derecognized	$ 17

Amount before tax of an increase (decrease) to a gain (loss) previously reported in discontinued operations in a prior period.

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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 divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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