Cash and Investments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 29, 2012
Cash and Investments [Abstract]
Available-for-sale investments	$ 14,108	$ 14,001
Cash	720	593
Equity method investments	962	992
Loans receivable	955	979
Non-marketable cost method investments	1,206	1,202
Reverse repurchase agreements	1,265	2,850
Trading assets	7,052	5,685
Total cash and investments	$ 26,268	$ 26,302

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References+ Details

- Definition

This element represents the aggregate carrying amount of all cost-method investments held by the Company. Generally, such investments do not have readily determinable fair values and are not required to be accounted for by the equity method. The carrying amount of such securities equates to cost, adjusted for other-than-temporary impairment. The cost method and lower-of-cost or market, an adaptation of the cost method, is generally followed for most investments in noncontrolled corporations, in some corporate joint ventures, and to a lesser extent in unconsolidated subsidiaries, particularly foreign.

+ References

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+ Details

- Definition

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.

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-Glossary Trading Securities

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