v2.4.0.8
Supplemental Financial Information (Net Cash Provided by Operating Activities)(Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Net income $ 2,633,000,000 $ 1,778,000,000 $ 6,596,000,000 $ 5,167,000,000
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation and amortization 1,959,000,000 1,916,000,000 5,929,000,000 5,873,000,000
Share-based compensation     386,000,000 312,000,000
Noncash interest expense (income), net     132,000,000 122,000,000
Equity in net (income) losses of investees, net (33,000,000) 130,000,000 (87,000,000) 96,000,000
Cash received from investees     71,000,000 89,000,000
Net (gain) loss on investment activity and other     (24,000,000) (239,000,000)
Deferred income taxes     358,000,000 (52,000,000)
Current and noncurrent receivables, net     89,000,000 145,000,000
Film and television costs, net     (471,000,000) 408,000,000
Accounts payable and accrued expenses related to trade creditors (cash flow)     119,000,000 (108,000,000)
Other operating assets and liabilities     (796,000,000) (134,000,000)
Net cash provided by operating activities     12,302,000,000 11,679,000,000
Amortization of film and television costs     6,727,000,000 5,998,000,000
Additions to film and television costs     7,198,000,000 5,590,000,000
NBCUniversal Media, LLC [Member]
        
Net income 833,000,000 278,000,000 2,416,000,000 1,319,000,000
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation and amortization 371,000,000 352,000,000 1,106,000,000 1,045,000,000
Share-based compensation       7,000,000
Equity in net (income) losses of investees, net (20,000,000) 132,000,000 (49,000,000) 105,000,000
Cash received from investees     50,000,000 73,000,000
Net (gain) loss on investment activity and other     83,000,000 347,000,000
Deferred income taxes     52,000,000 (6,000,000)
Current and noncurrent receivables, net     7,000,000 142,000,000
Film and television costs, net     (483,000,000) 368,000,000
Accounts payable and accrued expenses related to trade creditors (cash flow)     (183,000,000) (262,000,000)
Other operating assets and liabilities     157,000,000 596,000,000
Net cash provided by operating activities     3,156,000,000 3,734,000,000
Amortization of film and television costs     6,705,000,000 5,945,000,000
Additions to film and television costs     $ 7,188,000,000 $ 5,577,000,000