v3.25.0.1
Investments - Equity Investment in Adevinta, Adyen and Gmarket Narrative (Details)
shares in Millions, $ in Millions
 1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
May 29, 2024
USD ($)
shares
Dec. 31, 2024
USD ($)
tranche
Nov. 30, 2024
USD ($)
shares
Feb. 27, 2025
USD ($)
Dec. 31, 2024
USD ($)
tranche
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2024
USD ($)
tranche
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
shares
Schedule of Investments [Line Items]                    
Unrealized change in fair value of equity investment             $ (243) $ 1,657 $ (3,340)  
Deferred tax liabilities   $ 1,405     $ 1,405   1,405 2,408    
Income taxes payable   966     966   966 253    
Fair value of investment   $ 0     $ 0   0 4,474    
Realized change in fair value of shares sold             9 13 (812)  
Other equity investments without readily determinable fair values             $ 51 33 11  
Warrant                    
Schedule of Investments [Line Items]                    
Percent of shares acquirable   5.00%     5.00%   5.00%      
Warrant term   7 years     7 years   7 years      
Number of tranches | tranche   4     4   4      
Number of fixed tranches | tranche   2     2   2      
Investments | Fair Value, Measurements, Recurring                    
Schedule of Investments [Line Items]                    
Warrant   $ 54     $ 54   $ 54 47    
Discontinued Operations | eBay Korea                    
Schedule of Investments [Line Items]                    
Percentage of outstanding equity interests sold           80.01%       80.01%
Adyen                    
Schedule of Investments [Line Items]                    
Value of shares purchased   630     630   630      
Adevinta                    
Schedule of Investments [Line Items]                    
Equity interest percentage           44.00%       44.00%
Equity investment under fair value option           $ 10,800       $ 10,800
Total cash consideration from sale of equity securities             2,410 0 8  
Percentage of outstanding equity interests retained           33.00%        
Unrealized change in fair value of equity investment             (234) 1,782 (2,693)  
Realized gain on sale of equity securities             78      
Deferred tax liabilities   456     456   456      
Income taxes payable   458     458   458      
Fair value of investment   0     0   0 4,474    
Realized change in fair value of shares sold             78 0 2  
Adevinta | Aurelia BidCo 1 Norway AS                    
Schedule of Investments [Line Items]                    
Number of voting shares sold (in shares) | shares 227                  
Total cash consideration from sale of equity securities $ 2,400                  
Percentage of outstanding equity interests retained 18.30%                  
Adevinta | Aurelia Netherlands TopCo B.V                    
Schedule of Investments [Line Items]                    
Number of voting shares sold (in shares) | shares 177                  
Adevinta | Permira                    
Schedule of Investments [Line Items]                    
Number of voting shares sold (in shares) | shares           135       135
Total cash consideration from sale of equity securities           $ 2,300        
Aurelia                    
Schedule of Investments [Line Items]                    
Number of voting shares sold (in shares) | shares     97              
Total cash consideration from sale of equity securities     $ 1,000       1,036 0 0  
Equity investments without readily determinable fair values   $ 867     $ 867   $ 867      
Deferred tax liabilities     202              
Income taxes payable     198              
Purchase option, term             6 months      
Realized change in fair value of shares sold     $ (11)       $ (11) 0 0  
Aurelia | Aurelia UK Feederco Limited                    
Schedule of Investments [Line Items]                    
Equity investments without readily determinable fair values $ 1,900                  
Fair value of equity outstanding percentage   8.30%     8.30%   8.30%      
Gmarket                    
Schedule of Investments [Line Items]                    
Total cash consideration from sale of equity securities   $ 322         $ 323 0    
Percentage of outstanding equity interests retained                   19.99%
Unrealized change in fair value of equity investment   (12)           (96)    
Income taxes payable   119     $ 119   119      
Fair value of investment               335    
Realized change in fair value of shares sold   (1)                
Investment balance   323     323 $ 728 323     $ 728
Warrant   0     0   0 335 431  
Adyen                    
Schedule of Investments [Line Items]                    
Total cash consideration from sale of equity securities         108   573 0 800  
Unrealized change in fair value of equity investment             0 0 (118)  
Deferred tax liabilities   114     114   114      
Income taxes payable   $ 105     $ 105   105      
Realized change in fair value of shares sold             $ (57) $ 0 $ (143)  
Adyen | Subsequent Event                    
Schedule of Investments [Line Items]                    
Total cash consideration from sale of equity securities       $ 573            
Realized change in fair value of shares sold       $ (57)