Annual report pursuant to Section 13 and 15(d)

Other Comprehensive Earnings (Loss) (Details)

Other Comprehensive Earnings (Loss) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (199)	$ (49)	$ (4)
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Noncontrolling Interest [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	(241)	(65)	(47)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	49	(8)	21
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(192)	(73)	(26)
Other Comprehensive Earnings (Loss), Share of AOCI of Equity Affiliates Before Tax	(29)	3	5
Other Comprehensive Earnings (Loss), Share of AOCI of Equity Affiliates Tax	11	(1)	(2)
Other Comprehensive Earnings (Loss), Share of AOCI of Equity Affiliates, Net of Tax	(18)	2	3
Other comprehensive Income (loss) from discontinued operations Before Tax	(2)	(5)	2
Other comprehensive Income (loss) from discontinued operations Tax	1	2	(1)
Other comprehensive Income (loss) from discontinued operations Net of Tax	(1)	(3)	1
Other Comprehensive Income (Loss), before Tax	(272)	(67)	(40)
Other Comprehensive Income (Loss), Tax	61us-gaap_OtherComprehensiveIncomeLossTax	(7)us-gaap_OtherComprehensiveIncomeLossTax	18us-gaap_OtherComprehensiveIncomeLossTax
Other Comprehensive Income (Loss), Net of Tax	(211)	(74)	(22)
Other comprehensive earnings (loss)	415	506	1,569
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(94)	99	148	152
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(199)	(49)	(4)
Distribution to stockholders for TripAdvisor Holdings Spin-Off	6
Accumulated Translation Adjustment [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(178)	(48)	(7)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(75)	103	151	158
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(178)	(48)	(7)
Accumulated other comprehensive income (loss) of equity method affiliates [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(18)	2	3
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(19)	(1)	(3)	(6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(18)	2	3
accumulated other comprehensive income of discontinued operations [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(3)	(3)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax		(3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(3)	(3)
Distribution to stockholders for TripAdvisor Holdings Spin-Off	$ 6