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Share-Based and Long-Term Incentive Compensation (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended9 Months Ended
Oct. 01, 2011
Oct. 02, 2010
Oct. 01, 2011
Oct. 02, 2010
Jan. 01, 2011
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based compensation expense$ 11$ 4$ 48$ 16 
Total share-based and long-term incentive compensation expense1265120 
Share-based and long-term incentive compensation, additional disclosures [Abstract]     
Fair value of awards granted to retirement-eligible employees and expensed at the date of grant  43 
Unrecognized compensation cost for all awards not vested37 37  
Weighted average period of recognition for all awards (in years)2 2  
Accrued dividends included in fair value of all awards vested and to be settled in cash2 2  
Fair value of all awards vested and to be settled in cash90 90 64
Fair value of all awards included in other current liabilities52 52 14
Fair value of all awards included in long-term liabilities38 38 50
Cash-Settled Restricted or Performance Stock Units [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based compensation expense934010 
Stock-Settled Restricted Stock Units [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based compensation expense1031 
Stock Options [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based compensation expense1155 
Fixed Value Cash Awards [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total long-term incentive compensation expense1234 
Cost of Sales [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based and long-term incentive compensation expense2052 
Selling Expense [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based and long-term incentive compensation expense0011 
General and Administrative Expense [Member]
     
Share-based and long-term incentive compensation expense [Abstract]     
Total share-based and long-term incentive compensation expense$ 10$ 6$ 45$ 17