Income Taxes - Benefit (Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Nov. 05, 2016
Income tax payable				$ 73
Income (loss) before income taxes
Income (loss) before income taxes	$ 1,621	$ 445	$ 67
Current:
Federal	16	(4)	(2)
State and local	(3)	(1)
Foreign	(31)
Current income tax expense benefit	(18)	(5)	(2)
Deferred:
Federal	401	(139)	(17)
State and local	51	(19)	(2)
Foreign	17
Deferred income tax benefit (expense)	469	(158)	(19)
Income tax benefit (expense)	451	(163)	(21)
U.S.
Income (loss) before income taxes
Income (loss) before income taxes	1,565	$ 445	$ 67
Foreign
Income (loss) before income taxes
Income (loss) before income taxes	$ 56
Expedia
Percentage limit for consolidating income tax returns	80.00%