XML 97 R84.htm IDEA: XBRL DOCUMENT v3.8.0.1
Redeemable Noncontrolling Interests (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 25, 2017
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Redeemable Noncontrolling Interest [Line Items]          
Redeemable noncontrolling interests   $ 419 $ 413    
Redeemable noncontrolling interest balance   419 $ 413 $ 249 $ 243
OWN          
Redeemable Noncontrolling Interest [Line Items]          
Redeemable noncontrolling interest balance   56      
VTEN          
Redeemable Noncontrolling Interest [Line Items]          
Redeemable noncontrolling interest balance $ 120 120      
Post-acquisition ownership percentage of the acquiror in the combined entity 67.50%        
Initial fair value of redeemable noncontrolling interest $ 82 82      
Adjustment to redemption value   $ 38      
Discovery Family          
Redeemable Noncontrolling Interest [Line Items]          
Ownership percentage by noncontrolling owners   40.00%      
Terms of put arrangement   1 year      
Discovery Japan          
Redeemable Noncontrolling Interest [Line Items]          
Redeemable noncontrolling interest balance   $ 28      
Ownership percentage by noncontrolling owners   20.00%      
GoldenTree Asset Management L.P. | VTEN          
Redeemable Noncontrolling Interest [Line Items]          
Post-acquisition ownership percentage of the acquiror in the combined entity 32.50%