Select Historical Segment Financial Change - Reconciliation of Adjusted EBITDA by Segment (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Loss from operations	$ (1,106)	$ (5,485)	$ (1,034)	$ (763)	$ (739)	$ (478)	$ (7,625)	$ (1,980)
Depreciation and amortization	(102)			(131)			(371)	(317)
Stock-based compensation expense	(401)			(64)			(4,353)	(147)
Segments
Segment Reporting Information [Line Items]
Loss from operations	38	(34)	(301)	52	190	258	(297)	500
Reconciling Items
Segment Reporting Information [Line Items]
Corporate G&A and Platform R&D	(623)	(622)	(568)	(501)	(466)	(436)	(1,813)	(1,403)
Depreciation and amortization	(102)	(123)	(146)	(131)	(98)	(88)	(371)	(317)
Stock-based compensation expense	(401)	(3,941)	(11)	(64)	(20)	(63)	(4,353)	(147)
Legal, tax, and regulatory reserve changes and settlements	27	(380)	0	(56)	(252)	0	(353)	(308)
Driver appreciation award	0	(299)	0	0	0	0	(299)	0
Payroll tax on IPO stock-based compensation	0	(86)	0	0	0	0	(86)	0
Asset impairment/loss on sale of assets	0	0	(8)	(54)	(81)	(32)	(8)	(167)
Acquisition and financing related expenses	0	0	0	0	0	(15)	0	(15)
Gain on restructuring of lease arrangement	0	0	0	0	4	0	0	4
Impact of 2018 Divested Operations	0	0	0	(9)	(16)	(102)	0	(127)
Rides \| Segments
Segment Reporting Information [Line Items]
Loss from operations	631	506	192	416	453	477	1,329	1,346
Eats \| Segments
Segment Reporting Information [Line Items]
Loss from operations	(316)	(286)	(309)	(189)	(84)	(50)	(911)	(323)
Freight \| Segments
Segment Reporting Information [Line Items]
Loss from operations	(81)	(52)	(29)	(31)	(28)	(20)	(162)	(79)
Other Bets \| Segments
Segment Reporting Information [Line Items]
Loss from operations	(72)	(70)	(42)	(12)	0	0	(184)	(12)
ATG and Other Technology Programs \| Segments
Segment Reporting Information [Line Items]
Loss from operations	$ (124)	$ (132)	$ (113)	$ (132)	$ (151)	$ (149)	$ (369)	$ (432)

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