Business Restructuring Charges Business Restructuring Charges - Changes in Restructuring Balance Footnote (Detail) $ in Millions	12 Months Ended
Sep. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Capitalized Computer Software, Impairments	$ 214
Respiratory Solutions \| Disposal Group, Held-for-sale, Not Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Disposition of Business	(81)
IT Restructuring
Restructuring Cost and Reserve [Line Items]
Change in workforce related costs	13
Care Fusion Corporation
Restructuring Cost and Reserve [Line Items]
Change in workforce related costs	$ 40

Amount of impairment loss from capitalized computer software costs.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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