CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common stock	Common stock Class B Common Stock	Additional paid-in capital	Treasury stock - Common and Class B	Retained earnings (deficit)	Accumulated other comprehensive income (loss)	Non-redeemable non-controlling interest	Liberty Expedia Holdings	Liberty Expedia Holdings Common stock	Liberty Expedia Holdings Additional paid-in capital	Liberty Expedia Holdings Treasury stock - Common and Class B
Beginning Balance, shares issued (in shares) at Dec. 31, 2016		224,309,769	12,799,999
Beginning Balance (in shares) at Dec. 31, 2016					87,077,319
Beginning Balance at Dec. 31, 2016	$ 5,693	$ 0	$ 0	$ 8,794	$ (4,511)	$ 129	$ (280)	$ 1,561
Net income (loss) (excludes net income attributable to redeemable non-controlling interest)	369					378		(9)
Other comprehensive income (loss), net of taxes	182						131	51
Payment of dividends to stockholders (declared at $ per share)	(176)			0		(176)
Proceeds from exercise of equity instruments and employee stock purchase plans (in shares)		3,982,546
Proceeds from exercise of equity instruments and employee stock purchase plans	228	$ 0		228
Withholding taxes for stock options	(9)			(9)
Issuance of common stock in connection with acquisitions (in shares)		175,040
Issuance of common stock in connection with acquisitions	0	$ 0		0
Treasury stock activity related to vesting of equity instruments (in shares)					133,319
Treasury stock activity related to vesting of equity instruments	$ (17)				$ (17)
Common stock repurchases (in shares)	2,300,000				2,317,617
Common stock repurchases	$ (294)				$ (294)
Other changes in non-controlling interests	6			3				3
Stock-based compensation expense	148			148
Other	(1)			(1)
Ending Balance (in shares) at Dec. 31, 2017					89,528,255
Ending Balance, shares issued (in shares) at Dec. 31, 2017		228,467,355	12,799,999
Ending Balance at Dec. 31, 2017	6,129	$ 0	$ 0	9,163	$ (4,822)	331	(149)	1,606
Net income (loss) (excludes net income attributable to redeemable non-controlling interest)	397					406		(9)
Other comprehensive income (loss), net of taxes	(86)						(68)	(18)
Payment of dividends to stockholders (declared at $ per share)	(186)					(186)
Proceeds from exercise of equity instruments and employee stock purchase plans (in shares)		2,850,591
Proceeds from exercise of equity instruments and employee stock purchase plans	166	$ 0		166
Withholding taxes for stock options	(2)			(2)
Issuance of common stock in connection with acquisitions (in shares)		175,040
Issuance of common stock in connection with acquisitions	0	$ 0		0
Treasury stock activity related to vesting of equity instruments (in shares)					179,783
Treasury stock activity related to vesting of equity instruments	$ (20)				$ (20)
Common stock repurchases (in shares)	7,700,000				7,720,194
Common stock repurchases	$ (904)				$ (904)
Proceeds from issuance of treasury stock (in shares)					269,646
Proceeds from issuance of treasury stock	31			27	$ 4
Adjustment to the fair value of redeemable non-controlling interests	(3)			0		(3)
Other changes in non-controlling interests	18			(7)				25
Purchase of remaining interest in Air Asia	(62)			(5)				(57)
Stock-based compensation expense	208			208
Other	(1)			(1)
Ending Balance (in shares) at Dec. 31, 2018					97,158,586
Ending Balance, shares issued (in shares) at Dec. 31, 2018		231,492,986	12,799,999
Ending Balance at Dec. 31, 2018	5,651	$ 0	$ 0	9,549	$ (5,742)	517	(220)	1,547
Net income (loss) (excludes net income attributable to redeemable non-controlling interest)	574					565		9
Other comprehensive income (loss), net of taxes	(5)						3	(8)
Payment of dividends to stockholders (declared at $ per share)	(195)					(195)
Proceeds from exercise of equity instruments and employee stock purchase plans (in shares)		4,453,610
Proceeds from exercise of equity instruments and employee stock purchase plans	301	$ 0		301
Withholding taxes for stock options	(2)			(2)
Liberty Expedia Holdings transaction, shares issued (in shares)										20,745,181
Liberty Expedia Holdings transaction, shares issued										$ 0	$ 2,883
Liberty Expedia Holdings transaction									$ (329)
Treasury stock activity related to vesting of equity instruments (in shares)					295,185
Treasury stock activity related to vesting of equity instruments	$ (36)				$ (36)
Common stock repurchases (in shares)	5,600,000				5,562,083							23,876,671
Common stock repurchases	$ (683)				$ (683)							$ (3,212)
Adjustment to the fair value of redeemable non-controlling interests	(14)					(14)
Other changes in non-controlling interests	22			1				21
Stock-based compensation expense	246			246
Other	0			0
Ending Balance (in shares) at Dec. 31, 2019					126,892,525
Ending Balance, shares issued (in shares) at Dec. 31, 2019		256,691,777	12,799,999
Ending Balance at Dec. 31, 2019	$ 5,536	$ 0	$ 0	$ 12,978	$ (9,673)	$ 879	$ (217)	$ 1,569