Discontinued Operations - Balance Sheet (Details) - USD ($) $ in Millions	Mar. 31, 2017	Jul. 01, 2016
Assets
Current assets of discontinued operations	$ 792	$ 397
Non-current assets of discontinued operations	0	1,077
Liabilities
Current liabilities of discontinued operations	186	248
Non-current liabilities of discontinued operations (3)	6	45
Discontinued Operations, Held-for-sale
Assets
Receivables	159	263
Inventories	84	97
Property, plant and equipment	19	0
Goodwill	259	0
Other intangible assets	261	0
Other current assets	10	37
Current assets of discontinued operations	792	397
Property, plant and equipment	0	91
Goodwill	0	623
Non-current deferred income taxes	0	47
Other intangible assets	0	311
Other non-current assets	0	5
Non-current assets of discontinued operations	0	1,077
Liabilities
Accounts payable	75	109
Advance payments and unearned income	25	25
Other current liabilities (2)	86	114
Current liabilities of discontinued operations	186	248
Non-current liabilities of discontinued operations (3)	6	45
IT Services Business | Critical Networks | Discontinued Operations, Held-for-sale
Assets
Receivables	159	196
Inventories	84	83
Property, plant and equipment	19	0
Goodwill	259	0
Other intangible assets	261	0
Other current assets	10	6
Current assets of discontinued operations	792	285
Property, plant and equipment	0	18
Goodwill	0	487
Non-current deferred income taxes	0	4
Other intangible assets	0	287
Other non-current assets	0	2
Non-current assets of discontinued operations	0	798
Liabilities
Accounts payable	75	98
Advance payments and unearned income	25	20
Other current liabilities (2)	68	40
Current liabilities of discontinued operations	168	158
Non-current liabilities of discontinued operations (3)	0	13
CapRock | Critical Networks | Discontinued Operations, Disposed of by Sale
Assets
Receivables	0	67
Inventories	0	14
Other current assets	0	31
Current assets of discontinued operations	0	112
Property, plant and equipment	0	73
Goodwill	0	136
Non-current deferred income taxes	0	43
Other intangible assets	0	24
Other non-current assets	0	3
Non-current assets of discontinued operations	0	279
Liabilities
Accounts payable	0	11
Advance payments and unearned income	0	5
Other current liabilities (2)	15	44
Current liabilities of discontinued operations	15	60
Non-current liabilities of discontinued operations (3)	0	26
Broadcast Communications | Discontinued Operations, Disposed of by Sale
Liabilities
Other current liabilities (2)	3	30
Non-current liabilities of discontinued operations (3)	$ 6	$ 6