Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.8.0.1
Stock-Based Compensation (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2018
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%
Total unrecognized compensation cost related to unvested equity awards | $ $ 49
Weighted average period of recognition related to unvested equity awards (in years) 1 year 7 months 6 days
Performance based restricted stock unit [member] | Common Class C  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year
Liberty Sirius XM Group  
Common Stock, Capital Shares Reserved for Future Issuance 13,500,000
Liberty Sirius XM Group | Common Class A  
Options granted 0
Liberty Sirius XM Group | Common Class B  
Options granted 0
Liberty Sirius XM Group | Common Class C  
Options granted 633,000
Liberty Sirius XM Group | CEO | Common Class C  
Options granted 633,000
Weighted average grant-date fair value | $ / shares $ 11.56
Braves Group  
Common Stock, Capital Shares Reserved for Future Issuance 1,500,000
Braves Group | Common Class A  
Options granted 0
Braves Group | Common Class B  
Options granted 0
Braves Group | Common Class C  
Options granted 46,000
Braves Group | CEO | Common Class C  
Options granted 46,000
Weighted average grant-date fair value | $ / shares $ 6.44
Restricted stock granted 12,000
Performance based restricted stock unit grant date fair value | $ / shares $ 23.34
Formula One Group  
Common Stock, Capital Shares Reserved for Future Issuance 7,200,000
Formula One Group | Common Class A  
Options granted 0
Formula One Group | Common Class B  
Options granted 0
Formula One Group | Common Class C  
Options granted 2,026,000
Formula One Group | CEO | Common Class C  
Options granted 138,000
Weighted average grant-date fair value | $ / shares $ 8.80
Restricted stock granted 86,000
Performance based restricted stock unit grant date fair value | $ / shares $ 31.99
Formula One Group | Formula 1 employees [member] | Common Class C  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year
Options granted 1,888,000
Weighted average grant-date fair value | $ / shares $ 8.64