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Acquisitions and Divestitures - Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Jun. 30, 2018	Sep. 30, 2017	May 17, 2017
Business Combinations [Abstract]
Accounts receivable			$ 52
Inventory			74
Other current assets			4
Intangible assets			330
Goodwill	$ 2,447	$ 2,465	290
Property, plant and equipment			94
Other noncurrent assets			20
Accounts payable			(33)
Deferred tax - net			(137)
Other noncurrent liabilities			(14)
Total purchase price			$ 680

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The all-cash purchase price paid to acquire an entity.

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The aggregate expected value at the end of their useful life of a major finite-lived intangible asset class acquired during the period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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Fair value of acquired receivable from business combination, excluding certain loans and debt securities acquired in transfer.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as noncurrent.

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The amount of inventory recognized as of the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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