Financial Instruments (Details) (Schedule of Available-For-Sale Securities) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Available-for-sale Securities [Line Items]
Cash equivalents, at fair value	$ 477	$ 739
Current marketable securities, at fair value	453	896
Noncurrent marketable securities, at fair value	181	149
Other assets, at fair value	24	10
Money Market Funds
Available-for-sale Securities [Line Items]
Cash equivalents, at fair value	402	738
Noncurrent marketable securities, at fair value	13	9
Other assets, at fair value	10	10
Commercial Paper
Available-for-sale Securities [Line Items]
Cash equivalents, at fair value	75	1
Current marketable securities, at fair value	324	698
Time Deposits
Available-for-sale Securities [Line Items]
Current marketable securities, at fair value	100	160
Auction Rate Securities
Available-for-sale Securities [Line Items]
Current marketable securities, at fair value	28	38
Equity Securities
Available-for-sale Securities [Line Items]
Current marketable securities, at fair value	1	0
Corporate Bond Securities
Available-for-sale Securities [Line Items]
Noncurrent marketable securities, at fair value	168	140
Mutual Funds
Available-for-sale Securities [Line Items]
Other assets, at fair value	$ 14	$ 0