Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 24, 2012
Mar. 25, 2012
Dec. 25, 2011
Sep. 25, 2011
Mar. 27, 2011
Dec. 26, 2010
Mar. 25, 2012
Mar. 27, 2011
Stock repurchase program [Abstract]                
Shares repurchased and retired, shares             2,046,000 0
Shares repurchased and retired, value             $ 99,000,000 $ 0
Authorized dollar amount of repurchase of common stock under current stock repurchase program             4,000,000,000  
Authorized dollar amount of repurchase of common stock under prior stock repurchase program             3,000,000,000  
Authorized dollar amount remaining available under prior stock repurchase program, net of put options outstanding             948,000,000  
Authorized dollar amount remaining available under current stock repurchase program, net of put options outstanding             3,500,000,000  
Option Indexed to Issuer's Equity, Indexed Shares   11,800,000         11,800,000  
Value, net of premiums received, of outstanding options indexed to issuers equity   511,000,000         511,000,000  
Premiums received from put option derivative instruments       75,000,000        
Put option contracts derivative liabilities at fair value   3,000,000         3,000,000  
Gain on put option derivatives recorded in net investment income   32,000,000     0   77,000,000 0
Dividends [Abstract]                
Dividends charged to retained earnings - per share $ 0.25 $ 0.215 $ 0.215   $ 0.190 [1] $ 0.190 $ 0.43 $ 0.38 [1]
Amount of increased common stock dividends per share announced   $ 0.25            
Dividends Payable, Date Declared, Day, Month and Year Apr. 03, 2012              
Dividends Payable, Date to be Paid, Day, Month and Year Jun. 20, 2012              
Dividends Payable, Date of Record, Day, Month and Year Jun. 01, 2012              
Dividends charged to retained earnings - total   $ 377,000,000 $ 368,000,000   $ 319,000,000 $ 314,000,000 $ 745,000,000 $ 633,000,000
[1] As adjusted for discontinued operations (Note 8)