Fair Value (Schedule of Fair Value, by Balance Sheet Grouping, Measured on Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Jun. 27, 2014	Jun. 28, 2013
Assets and liabilities measured at fair value on a recurring basis
Short-term investments	$ 20	$ 480
Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash and cash equivalents	793	787
Short-term investments	0	4
Restricted cash and investments	0	96
Other current assets	0	0
Auction rate securities	0	0
Total assets	793	887
Derivative liabilities	0	0
Total liabilities	0	0
Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash and cash equivalents	1,516	741
Short-term investments	20	476
Restricted cash and investments	4	5
Other current assets	0	0
Auction rate securities	5	0
Total assets	1,545	1,222
Derivative liabilities	0	(1)
Total liabilities	0	1
Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash and cash equivalents	0	0
Short-term investments	0	0
Restricted cash and investments	0	0
Other current assets	0	0
Auction rate securities	0	15
Total assets	0	15
Derivative liabilities	0	0
Total liabilities	0	0
Recurring basis [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash and cash equivalents	2,309	1,528
Short-term investments	20	480
Restricted cash and investments	4	101
Other current assets	0	0
Auction rate securities	5	15
Total assets	2,338	2,124
Derivative liabilities	0	(1)
Total liabilities	$ 0	$ 1