Financial Instruments (Available-For-Sale Securities) (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | ||||||||||||||||||||||||||||||
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Sep. 29, 2012
|
Oct. 01, 2011
|
Sep. 29, 2012
Cash Equivalents [Member]
|
Dec. 31, 2011
Cash Equivalents [Member]
|
Sep. 29, 2012
Cash Equivalents [Member]
Money Market Funds [Member]
|
Dec. 31, 2011
Cash Equivalents [Member]
Money Market Funds [Member]
|
Sep. 29, 2012
Cash Equivalents [Member]
Commercial Paper [Member]
|
Dec. 31, 2011
Cash Equivalents [Member]
Commercial Paper [Member]
|
Sep. 29, 2012
Marketable Securities [Member]
|
Dec. 31, 2011
Marketable Securities [Member]
|
Sep. 29, 2012
Marketable Securities [Member]
Commercial Paper [Member]
|
Dec. 31, 2011
Marketable Securities [Member]
Commercial Paper [Member]
|
Sep. 29, 2012
Marketable Securities [Member]
U.S. Treasury and U.S. Agency Notes [Member]
|
Dec. 31, 2011
Marketable Securities [Member]
U.S. Treasury and U.S. Agency Notes [Member]
|
Sep. 29, 2012
Marketable Securities [Member]
Time Deposits [Member]
|
Dec. 31, 2011
Marketable Securities [Member]
Time Deposits [Member]
|
Sep. 29, 2012
Marketable Securities [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2011
Marketable Securities [Member]
Auction Rate Securities [Member]
|
Sep. 29, 2012
Marketable Securities [Member]
Marketable Equity Securities [Member]
|
Dec. 31, 2011
Marketable Securities [Member]
Marketable Equity Securities [Member]
|
Sep. 29, 2012
Long-Term Marketable Securities [Member]
|
Dec. 31, 2011
Long-Term Marketable Securities [Member]
|
Sep. 29, 2012
Long-Term Marketable Securities [Member]
Money Market Funds [Member]
|
Dec. 31, 2011
Long-Term Marketable Securities [Member]
Money Market Funds [Member]
|
Sep. 29, 2012
Long-Term Marketable Securities [Member]
Corporate Bonds [Member]
|
Dec. 31, 2011
Long-Term Marketable Securities [Member]
Corporate Bonds [Member]
|
Sep. 29, 2012
Other Assets [Member]
|
Dec. 31, 2011
Other Assets [Member]
|
Sep. 29, 2012
Other Assets [Member]
Money Market Funds [Member]
|
Dec. 31, 2011
Other Assets [Member]
Money Market Funds [Member]
|
Sep. 29, 2012
Auction Rate Securities [Member]
Marketable Securities [Member]
|
|
Financial Instrument [Line Items] | |||||||||||||||||||||||||||||||
Available-for-sale Securities Pledged as Collateral | $ 10 | ||||||||||||||||||||||||||||||
Sales Of Available-For-Sale Securities | 6 | 21 | |||||||||||||||||||||||||||||
Fair Value | 627 | 739 | 427 | 738 | 200 | 1 | 524 | 896 | 341 | 698 | 50 | 0 | 100 | 160 | 32 | 38 | 1 | 0 | 180 | 149 | 1 | 9 | 179 | 140 | 10 | 10 | 10 | 10 | |||
Available-for-sale Securities, Debt Securities, Current | $ 32 |