Fair Value Measurements Fair Value Hierarchy (Details) (USD $) In Millions	Sep. 25, 2011
Assets [Abstract]
Cash equivalents	$ 4,624
Marketable Securities [Abstract]
U.S. Treasury securities and government-related securities	522
Corporate bonds and notes	6,018
Mortgage- and asset-backed securities	678
Auction rate securities	124
Non-investment-grade debt securities	3,672
Common and preferred stock	1,789
Equity mutual and exchange-traded funds	845
Debt mutual funds	1,803
Total marketable securities	15,451
Derivative Instruments	24
Other investments (1)	152
Total assets measured at fair value	20,251
Liabilities [Abstract]
Derivative instruments	122
Other liabilities (1)	159
Total liabilities measured at fair value	281
Level 1 [Member]
Assets [Abstract]
Cash equivalents	2,495
Marketable Securities [Abstract]
U.S. Treasury securities and government-related securities	14
Corporate bonds and notes	0
Mortgage- and asset-backed securities	0
Auction rate securities	0
Non-investment-grade debt securities	0
Common and preferred stock	1,061
Equity mutual and exchange-traded funds	845
Debt mutual funds	1,327
Total marketable securities	3,247
Derivative Instruments	0
Other investments (1)	152
Total assets measured at fair value	5,894
Liabilities [Abstract]
Derivative instruments	0
Other liabilities (1)	152
Total liabilities measured at fair value	152
Level 2 [Member]
Assets [Abstract]
Cash equivalents	2,129
Marketable Securities [Abstract]
U.S. Treasury securities and government-related securities	508
Corporate bonds and notes	6,018
Mortgage- and asset-backed securities	667
Auction rate securities	0
Non-investment-grade debt securities	3,656
Common and preferred stock	728
Equity mutual and exchange-traded funds	0
Debt mutual funds	476
Total marketable securities	12,053
Derivative Instruments	24
Other investments (1)	0
Total assets measured at fair value	14,206
Liabilities [Abstract]
Derivative instruments	122
Other liabilities (1)	0
Total liabilities measured at fair value	122
Level 3 [Member]
Assets [Abstract]
Cash equivalents	0
Marketable Securities [Abstract]
U.S. Treasury securities and government-related securities	0
Corporate bonds and notes	0
Mortgage- and asset-backed securities	11
Auction rate securities	124
Non-investment-grade debt securities	16
Common and preferred stock	0
Equity mutual and exchange-traded funds	0
Debt mutual funds	0
Total marketable securities	151
Derivative Instruments	0
Other investments (1)	0
Total assets measured at fair value	151
Liabilities [Abstract]
Derivative instruments	0
Other liabilities (1)	7
Total liabilities measured at fair value	$ 7

Securities that are debt instruments (corporate or municipal bonds) that typically have long-term nominal maturities for which the interest rate is reset through an auction process. It could also refer to a preferred stock for which the dividend is reset through the same type of auction process

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This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis. Currently it is comprised of the assets related to the Company's deferred compensation plan, which are invested in mutual funds.

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The aggregate amount of assets, including [financial] instruments that are classified in stockholders' equity, which are measured at fair value on either a recurring or nonrecurring basis.

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The aggregate amount of liabilities, including [financial] instruments that are classified in stockholders' equity, which are measured at fair value on either a recurring or nonrecurring basis.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

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Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.

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