Segment Information and Geographic Information - Summary (Details) $ in Millions	3 Months Ended	12 Months Ended
Sep. 30, 2021 USD ($)	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| segment		3
Number of reportable segments \| segment		3
Segment Reporting Information [Line Items]
Depreciation and amortization		$ (823)	$ (947)	$ (902)
Stock-based compensation expense		(1,935)	(1,793)	(1,168)
Legacy auto insurance transfer	$ (103)
Income (loss) from operations		1,110	(1,832)	(3,834)
Segments
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA		6,405	3,850	1,107
Segments \| Mobility
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA		4,963	3,299	1,596
Segments \| Delivery
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA		1,506	551	(348)
Segments \| Freight
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA		(64)	0	(130)
Segments \| All Other
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA		0	0	(11)
Reconciling Items
Segment Reporting Information [Line Items]
Corporate G&A and Platform R&D		(2,353)	(2,137)	(1,881)
Depreciation and amortization		(823)	(947)	(902)
Stock-based compensation expense		(1,935)	(1,793)	(1,168)
Legal, tax, and regulatory reserve changes and settlements		(9)	(732)	(526)
Goodwill and asset impairments/loss on sale of assets		(84)	(25)	(157)
Acquisition, financing and divestitures related expenses		(36)	(46)	(102)
Accelerated lease costs related to cease-use of ROU assets		0	(6)	(5)
COVID-19 response initiatives		0	(1)	(54)
Loss on lease arrangement, net		(4)	(7)	0
Restructuring and related charges		(51)	(2)	0
Legacy auto insurance transfer		0	0	(103)
Mass arbitration fees, net		$ 0	$ 14	$ (43)

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