Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Liberty Broadband's Consolidated Statement Of Operations) (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Liberty Broadband's Consolidated Statement Of Operations) (Details) - Liberty Broadband - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Revenue $ 3 $ 3 $ 6 $ 7
Operating expenses, net 10 14 20 27
Operating income (loss) (7) (11) (14) (20)
Share of earnings (losses) of affiliates 11 621 30 551
Realized and unrealized gains (losses) on financial instruments, net 1 48 2 93
Gain (loss) on dilution of investment in affiliate (7) 778 (38) 776
Other income (expense), net (4) (1) (8) (1)
Income tax benefit (expense) 3 (545) 11 (531)
Net earnings (loss) $ (3) $ 890 $ (17) $ 868