Financial Instruments (Available-For-Sale Securities) (Details) (USD $) In Millions	Oct. 01, 2011	Dec. 25, 2010
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 50
Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	473	456
Cash Equivalents [Member] \| Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	362	405
Cash Equivalents [Member] \| Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	111	51
Current Marketable Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	1,182	1,183
Current Marketable Securities [Member] \| Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	952	983
Current Marketable Securities [Member] \| Time Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	185	135
Current Marketable Securities [Member] \| Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		8
Current Marketable Securities [Member] \| Auction Rate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	45	57
Other Assets [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	10	30
Other Assets [Member] \| Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	10	29
Other Assets [Member] \| Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		1
Long-Term Marketable Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	50
Long-Term Marketable Securities [Member] \| Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	29
Long-Term Marketable Securities [Member] \| Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 21

For an unclassified balance sheet, this item represents investments in debt and equity securities which are categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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+ Details