Leases - Narrative (Details) $ in Millions	Jun. 30, 2021 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease, lease not yet commenced	$ 496
Finance lease, lease not yet commenced	$ 16
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, lease not yet commenced, term	3 years
Finance lease, lease not yet commenced, term	3 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, lease not yet commenced, term	11 years
Finance lease, lease not yet commenced, term	11 years

Lessee, Finance Lease, Lease Not Yet Commenced, Amount

No definition available.

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Namespace Prefix:	uber_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Amount

+ References

No definition available.

+ Details

Name:	uber_LesseeOperatingLeaseLeaseNotYetCommencedAmount
Namespace Prefix:	uber_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Term of lessee's finance lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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