The total of financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time, usually less than one year or the normal operating cycle, whichever is longer) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition; this is the reason why the trading category of investments in debt and equity securities are bought and sold "principally" for sale in the near term. Transfers into and out of the trading category should be rare. Such financial instruments that are held as of the reporting date are measured at fair value with unrealized holding gains and losses (the difference between fair value and the previously reported carrying amount) included in earnings.

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This item represents debt securities that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time, usually less than one year or the normal operating cycle, whichever is longer) or for debt securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition; this is the reason why the trading category of investments in debt securities are bought and sold "principally" for sale in the near term. Transfers into and out of the trading category should be rare. Such financial instruments that are held as of the reporting date are measured at fair value with unrealized holding gains and losses (the difference between fair value and the previously reported carrying amount) included in earnings.

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- Definition

Total common and preferred stock (which is neither mandatorily redeemable nor redeemable at the option of the holder) equity securities that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time, usually less than one year or the normal operating cycle, whichever is longer) or for equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition; this is the reason why the trading category of investments in debt securities are bought and sold "principally" for sale in the near term. Transfers into and out of the trading category should be rare. Such financial instruments that are held as of the reporting date are measured at fair value with unrealized holding gains and losses (the difference between fair value and the previously reported carrying amount) included in earnings.

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Trading Assets (Detail) (USD $) In Millions			3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended
Trading Assets (Detail) (USD $) In Millions	Jul. 02, 2011	Dec. 25, 2010	Jun. 26, 2010 Marketable Equity Securities [Member]	Jun. 26, 2010 Marketable Equity Securities [Member]	Jul. 02, 2011 Marketable Debt Instruments [Member]	Jun. 26, 2010 Marketable Debt Instruments [Member]	Jul. 02, 2011 Marketable Debt Instruments [Member]	Jun. 26, 2010 Marketable Debt Instruments [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Marketable debt instruments	$ 3,796	$ 4,705
Marketable equity securities	10	388
Total trading assets	3,806	5,093
Net gains (losses) on derivatives related to trading securities					(13)	143	(53)	191
Net gains (losses) on trading assets, held			$ 38	$ 38	$ 16	$ (173)	$ 66	$ (234)