v2.4.0.8
Supplemental Financial Information (Receivables)(Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Receivables, gross $ 6,972 $ 6,026
Less: Allowance for returns and customer incentives 375 307
Less: Allowance for doubtful accounts 221 198
Receivables, net 6,376 5,521
Noncurrent receivables, net 488 641
NBCUniversal Media, LLC [Member]
   
Receivables, gross 5,348 4,381
Less: Allowance for returns and customer incentives 372 307
Less: Allowance for doubtful accounts 65 46
Receivables, net 4,911 4,028
Noncurrent receivables, net $ 488 $ 641