Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Available-For-Sale Securities) (Details)

v2.4.0.6
Financial Instruments (Available-For-Sale Securities) (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Jun. 30, 2012
Cash Equivalents [Member]
Dec. 31, 2011
Cash Equivalents [Member]
Jun. 30, 2012
Cash Equivalents [Member]
Money Market Funds [Member]
Dec. 31, 2011
Cash Equivalents [Member]
Money Market Funds [Member]
Jun. 30, 2012
Cash Equivalents [Member]
Commercial Paper [Member]
Dec. 31, 2011
Cash Equivalents [Member]
Commercial Paper [Member]
Jun. 30, 2012
Cash Equivalents [Member]
U.S. Treasury and U.S. Agency Notes [Member]
Dec. 31, 2011
Cash Equivalents [Member]
U.S. Treasury and U.S. Agency Notes [Member]
Jun. 30, 2012
Marketable Securities [Member]
Dec. 31, 2011
Marketable Securities [Member]
Jun. 30, 2012
Marketable Securities [Member]
Commercial Paper [Member]
Dec. 31, 2011
Marketable Securities [Member]
Commercial Paper [Member]
Jun. 30, 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]
Jun. 30, 2012
Marketable Securities [Member]
Time Deposits [Member]
Dec. 31, 2011
Marketable Securities [Member]
Time Deposits [Member]
Jun. 30, 2012
Marketable Securities [Member]
Auction Rate Securities [Member]
Dec. 31, 2011
Marketable Securities [Member]
Auction Rate Securities [Member]
Jun. 30, 2012
Marketable Securities [Member]
Marketable Equity Securities [Member]
Dec. 31, 2011
Marketable Securities [Member]
Marketable Equity Securities [Member]
Jun. 30, 2012
Long-Term Marketable Securities [Member]
Dec. 31, 2011
Long-Term Marketable Securities [Member]
Jun. 30, 2012
Long-Term Marketable Securities [Member]
Money Market Funds [Member]
Dec. 31, 2011
Long-Term Marketable Securities [Member]
Money Market Funds [Member]
Jun. 30, 2012
Long-Term Marketable Securities [Member]
Corporate Bonds [Member]
Dec. 31, 2011
Long-Term Marketable Securities [Member]
Corporate Bonds [Member]
Jun. 30, 2012
Other Assets [Member]
Dec. 31, 2011
Other Assets [Member]
Jun. 30, 2012
Other Assets [Member]
Money Market Funds [Member]
Dec. 31, 2011
Other Assets [Member]
Money Market Funds [Member]
Jun. 30, 2012
Auction Rate Securities [Member]
Financial Instrument [Line Items]                                                                  
Available-for-sale Securities Pledged as Collateral $ 10                                                                
Sales Of Available-For-Sale Securities 6 13                                                              
Fair Value     894 739 294 738 350 1 250 0 564 896 406 698 50 0 75 160 32 38 1 0 180 149 1 9 179 140 10 10 10 10  
Available-for-sale Securities, Debt Securities, Current                                                                 $ 32