v2.4.0.8
Supplemental Financial Information (Net Cash Provided by Operating Activities)(Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Net income $ 2,025,000,000 $ 1,744,000,000 $ 3,963,000,000 $ 3,389,000,000
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation and amortization 2,000,000,000 1,990,000,000 3,970,000,000 3,957,000,000
Share-based compensation     266,000,000 213,000,000
Noncash interest expense (income), net     87,000,000 81,000,000
Equity in net (income) losses of investees, net (22,000,000) (23,000,000) (54,000,000) (34,000,000)
Cash received from investees     50,000,000 72,000,000
Net (gain) loss on investment activity and other     (113,000,000) (91,000,000)
Deferred income taxes     (22,000,000) 87,000,000
Current and noncurrent receivables, net     60,000,000 58,000,000
Film and television costs, net     (28,000,000) 750,000,000
Accounts payable and accrued expenses related to trade creditors (cash flow)     (168,000,000) (87,000,000)
Other operating assets and liabilities     (464,000,000) (710,000,000)
Net cash provided by operating activities     7,547,000,000 7,685,000,000
Amortization of film and television costs     4,979,000,000 4,080,000,000
Additions to film and television costs     5,007,000,000 3,330,000,000
NBCUniversal Media, LLC [Member]
        
Net income 842,000,000 630,000,000 1,583,000,000 1,041,000,000
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation and amortization 370,000,000 349,000,000 735,000,000 693,000,000
Share-based compensation       7,000,000
Equity in net (income) losses of investees, net (11,000,000) (16,000,000) (29,000,000) (27,000,000)
Cash received from investees     35,000,000 58,000,000
Net (gain) loss on investment activity and other     45,000,000 61,000,000
Deferred income taxes     44,000,000 2,000,000
Current and noncurrent receivables, net     154,000,000 26,000,000
Film and television costs, net     (40,000,000) 726,000,000
Accounts payable and accrued expenses related to trade creditors (cash flow)     (280,000,000) (198,000,000)
Other operating assets and liabilities     (458,000,000) 113,000,000
Net cash provided by operating activities     1,789,000,000 2,502,000,000
Amortization of film and television costs     4,959,000,000 4,045,000,000
Additions to film and television costs     $ 4,999,000,000 $ 3,319,000,000