Restructuring and Related Charges - Cost by Segment and Function (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 362
Severance and Other Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges	199
Site Closure Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	98
Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	65
Operations and support
Restructuring Cost and Reserve [Line Items]
Restructuring charges	172
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Restructuring charges	21
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges	85
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	84
Segments
Restructuring Cost and Reserve [Line Items]
Restructuring charges	281
Corporate G&A and Platform R&D
Restructuring Cost and Reserve [Line Items]
Restructuring charges	81
Mobility \| Segments
Restructuring Cost and Reserve [Line Items]
Restructuring charges	67
Delivery \| Segments
Restructuring Cost and Reserve [Line Items]
Restructuring charges	32
Freight \| Segments
Restructuring Cost and Reserve [Line Items]
Restructuring charges	7
All Other \| Site Closure Costs \| Exit Of JUMP Business
Restructuring Cost and Reserve [Line Items]
Restructuring charges	21
All Other \| Other \| Exit Of JUMP Business
Restructuring Cost and Reserve [Line Items]
Restructuring charges	65
All Other \| Segments
Restructuring Cost and Reserve [Line Items]
Restructuring charges	175
All Other \| Segments \| Severance and Other Termination Benefits \| Exit Of JUMP Business
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 30

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b)(1))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration