Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Period of expected continuing involvement with a discontinued operation after the disposal date, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Impairment of Goodwill and Other Assets (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Jan. 26, 2017	Jan. 01, 2017	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016	Jul. 01, 2016
Proceeds from divestiture of business					$ 375	$ 0
Impairment of goodwill and other assets					240	$ 367
Discontinued Operations, Held-for-sale
Goodwill			$ 0		0		$ 623
Critical Networks \| IT Services Business \| Discontinued Operations, Held-for-sale
Discontinued operations, period of continuing involvement after disposal	18 months
Goodwill			0		0		487
Impairment of goodwill and other assets					238
Impairment of goodwill					228
Critical Networks \| CapRock \| Discontinued Operations, Disposed of by Sale
Discontinued operations, period of continuing involvement after disposal		12 months
Goodwill			0		$ 0		136
Electronic Systems \| IT Services Business \| Discontinued Operations, Held-for-sale
Goodwill	$ 487
Impairment of goodwill and other assets			238
Impairment of goodwill			$ 228
Electronic Systems \| CapRock \| Discontinued Operations, Disposed of by Sale
Goodwill							$ 1,443
Impairment of goodwill and other assets				$ 367
Impairment of goodwill				$ 290