Quarterly report pursuant to Section 13 or 15(d)

Assets And Liabilities Measured At Fair Value Realized Unrealized Gain Loss (Details)

v3.7.0.1
Assets And Liabilities Measured At Fair Value Realized Unrealized Gain Loss (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Realized and unrealized gains (losses) on financial instruments, net $ 701 $ (7)
Fair Value Option Securities - AFS    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Realized and unrealized gain (losses) AFS 260 136
Fair Value Option Securities - Liberty Broadband    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Realized and unrealized gains (losses) on financial instruments, net 526  
Exchangeable Senior Debentures    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Realized and unrealized gains (losses) on financial instruments, net (84) (142)
Other Financial Instruments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Realized and unrealized gains (losses) on financial instruments, net $ (1) $ (1)