v3.19.3.a.u2
Divestitures - Narrative (Details)
$ / shares in Units, shares in Millions, $ in Millions, $ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 25, 2018
USD ($)
shares
Jan. 31, 2019
SGD ($)
Aug. 31, 2018
vehicle
Jan. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2019
USD ($)
$ / shares
Dec. 31, 2018
USD ($)
divestiture
shares
Dec. 31, 2018
SGD ($)
divestiture
shares
Dec. 31, 2017
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Number of divestitures | divestiture               2 2  
Cash consideration contributed             $ 0 $ 412   $ 0
Issuance of common stock as consideration for investment and acquisition             9 144    
Gain on business divestitures             0 3,214   0
Investment, interest income not recognized             142 102    
Impairment loss               197   57
Principal repayment on revolving lines of credit             $ 0 491   76
UBER Russia, CIS Operations | Not Discontinued Operations                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Gain on business divestitures               954    
Southeast Asia operations | Not Discontinued Operations                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Gain on business divestitures         $ 2,200     $ 2,300    
Total Consideration $ 2,200                  
Investment received (in shares) | shares 401         8   409 409  
Investment received, percentage of outstanding share capital           23.20%   23.20%    
Investment subject to post-close contingency (in shares) | shares           3   3    
Xchange Leasing                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Impairment loss                   $ 166
Xchange Leasing | Not Discontinued Operations                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Consideration - cash and receivables       $ 104            
Consideration - convertible note receivable       5            
Contingent consideration       20            
MLU B.V.                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Cash consideration contributed         $ 345          
Share consideration contributed (in shares) | shares         2          
Issuance of common stock as consideration for investment and acquisition         $ 52          
Contingent obligation to buy back shares (in dollars per share) | $ / shares         $ 48          
Gain on business divestitures               $ 954    
Fair value of consideration received           $ 1,410   1,410    
Basis difference           908   908    
Total Consideration           $ 967   $ 967    
Grab Series G preferred stock                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Investment, redemption price (in dollars per share) | $ / shares             $ 5.54      
Investment, redemption price percentage             6.00%      
Grab Vehicle Purchase Agreement | Investee                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Number of vehicles under related party purchase agreement (up to) | vehicle     1,900              
Term of agreement     6 months              
Cash consideration for sale of assets   $ 39             $ 31  
Loss on asset disposal                 $ 9  
Transition Service Agreement | Investee                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Term of agreement             6 months      
Xchange Leasing 2016 Secured Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Not Discontinued Operations                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Principal repayment on revolving lines of credit       $ 75