v3.19.3.a.u2
Related Party Transactions (Condensed Consolidated Balance Sheet) (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Related Party Transaction [Line Items]    
Receivables, net $ 11,292 $ 11,104
Other current assets 4,723 3,184
Film and television costs 8,933 7,837
Other noncurrent assets, net 8,866 5,802
Accounts payable and accrued expenses related to trade creditors 10,826 8,494
Accrued expenses and other current liabilities 10,516 10,721
Long-term debt 97,765 107,345
Other noncurrent liabilities 16,765 15,329
NBCUniversal Media LLC [Member]    
Related Party Transaction [Line Items]    
Receivables, net 7,236 7,293
Other current assets 1,274 1,133
Notes receivable from Comcast, current 3,886 2,054
Film and television costs 7,956 7,292
Note receivable from Comcast, noncurrent 1,069 0
Other noncurrent assets, net 3,473 1,822
Accounts payable and accrued expenses related to trade creditors 2,209 1,933
Accrued expenses and other current liabilities 2,300 2,195
Long-term debt 9,709 12,731
Other noncurrent liabilities 6,548 5,177
Comcast and Consolidated Subsidiaries [Member] | NBCUniversal Media LLC [Member]    
Related Party Transaction [Line Items]    
Receivables, net 492 464
Other current assets 46 0
Notes receivable from Comcast, current 3,886 2,054
Film and television costs 26 27
Note receivable from Comcast, noncurrent 1,069 0
Other noncurrent assets, net 70 0
Accounts payable and accrued expenses related to trade creditors 84 78
Accrued expenses and other current liabilities 108 32
Notes payable to Comcast 99 54
Long-term debt 156 701
Other noncurrent liabilities $ 454 $ 410