v3.20.1
Variable Interest Entities ("VIEs") - Narrative (Details)
City in Thousands, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Jul. 31, 2019
Apr. 30, 2019
Mar. 31, 2018
USD ($)
Mar. 31, 2020
USD ($)
City
Mar. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Jan. 21, 2020
USD ($)
Variable Interest Entity [Line Items]              
Assets       $ 30,090   $ 31,761  
Liabilities       17,772   $ 16,578  
Return of capital from equity method investee       $ (91) $ 0    
Event Center Office Partners, LLC              
Variable Interest Entity [Line Items]              
Ownership interest       45.00%      
Variable Interest Entity, Not Primary Beneficiary              
Variable Interest Entity [Line Items]              
Note received             $ 35
Voting capital (in percent)             9.99%
Variable Interest Entity, Not Primary Beneficiary | Zomato              
Variable Interest Entity [Line Items]              
Maximum exposure to loss       $ 200      
Variable Interest Entity, Not Primary Beneficiary | Event Center Office Partners, LLC              
Variable Interest Entity [Line Items]              
Payments to acquire variable interest entity     $ 136        
Ownership interest     45.00%     45.00%  
Limited guarantee           $ 50  
Zomato              
Variable Interest Entity [Line Items]              
Number of cities | City       10      
Preferred Class A | ATG Investment              
Variable Interest Entity [Line Items]              
Sale of stock, percentage of ownership after transaction       13.90%      
Preferred Class A | Softbank, Toyota, and DENSO | ATG Investment              
Variable Interest Entity [Line Items]              
Sale of stock, percentage of ownership after transaction 13.80%            
Variable Interest Entity, Primary Beneficiary              
Variable Interest Entity [Line Items]              
Assets       $ 1,600   1,200  
Liabilities       $ 184   $ 159  
Sale of stock, percentage of ownership before transaction   100.00%          
Not Discontinued Operations | Uber Eats India              
Variable Interest Entity [Line Items]              
Investment value             $ 171
Note received             $ 35
Voting capital (in percent)             9.99%
Not Discontinued Operations | Uber Eats India | Variable Interest Entity, Not Primary Beneficiary              
Variable Interest Entity [Line Items]              
Investment value             $ 171