Quarterly report pursuant to Section 13 or 15(d)

Cash and Investments (Detail)

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Cash and Investments (Detail) - USD ($)
$ in Millions
Jun. 27, 2015
Dec. 27, 2014
Investments and Cash [Abstract]    
Available-for-sale investments $ 14,785 $ 13,038
Cash 892 805
Equity method investments 1,615 1,446
Loans receivable 742 971
Non-marketable cost method investments 1,890 1,769
Reverse repurchase agreements 768 718
Trading assets 6,810 9,063
Total cash and investments $ 27,502 $ 27,810