Fair Value (Details) (USD $) In Millions, unless otherwise specified	Jun. 28, 2013	Jun. 29, 2012
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	$ 101	$ 93
Auction rate securities	15	15
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1)
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	791	1,140
Restricted cash and investments	96	91
Auction rate securities	0	0
Derivative assets	0	0
Total Assets	887	1,231
Derivative liabilities	0	0
Total Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Money Market Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	787	1,140
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Commercial paper
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Corporate bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | U.S. treasuries and agency bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Other debt securities
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	22	25
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Equity Securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	4
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Mutual funds
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	74	66
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Auction rate securities
Assets and liabilities measured at fair value on a recurring basis
Auction rate securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	1,217	804
Restricted cash and investments	5	2
Auction rate securities	0	0
Derivative assets	0	2
Total Assets	1,222	808
Derivative liabilities	(1)	(2)
Total Liabilities	1	2
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Money Market Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Commercial paper
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	655	393
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Corporate bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	211	209
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | U.S. treasuries and agency bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	96	99
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	149	4
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Other debt securities
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	106	99
Restricted cash and investments	5	2
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Equity Securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Mutual funds
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Auction rate securities
Assets and liabilities measured at fair value on a recurring basis
Auction rate securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	0	0
Auction rate securities	15	15
Derivative assets	0	0
Total Assets	15	15
Derivative liabilities	0	0
Total Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Money Market Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Commercial paper
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Corporate bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | U.S. treasuries and agency bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Other debt securities
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Equity Securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Mutual funds
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Auction rate securities
Assets and liabilities measured at fair value on a recurring basis
Auction rate securities	15	15
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	2,008	1,944
Restricted cash and investments	101	93
Auction rate securities	15	15
Derivative assets	0	2
Total Assets	2,124	2,054
Derivative liabilities	(1)	(2)
Total Liabilities	1	2
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Money Market Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	787	1,140
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Commercial paper
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	655	393
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Corporate bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	211	209
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | U.S. treasuries and agency bonds
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	96	99
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	149	4
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Other debt securities
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	106	99
Restricted cash and investments	27	27
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Equity Securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	4
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Mutual funds
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	74	66
Fair Value, Measurements, Recurring [Member] | Fair Value, Total Balance | Auction rate securities
Assets and liabilities measured at fair value on a recurring basis
Auction rate securities	$ 15	$ 15