v2.4.0.6
Supplemental Financial Information (Receivables)(Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Supplemental Financial Information [Abstract]    
Receivables, gross $ 5,545 $ 6,026
Less: Allowance for returns and customer incentives 289 307
Less: Allowance for doubtful accounts 193 198
Receivables, net $ 5,063 $ 5,521