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Description of Business and Summary of Significant Accounting Policies - Narrative (Details)
$ / shares in Units, shares in Millions
1 Months Ended 12 Months Ended
Mar. 15, 2021
USD ($)
$ / shares
shares
Sep. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2023
USD ($)
numberOfOperatingSegment
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Number of operating segments | numberOfOperatingSegment       2    
Advertising expenses       $ 711,000,000 $ 605,000,000 $ 433,000,000
Accounts receivable, net     $ 64,000,000 71,000,000 64,000,000  
Inventory and fixed asset losses due to fulfillment center fire       0 0 285,000,000
Impairment losses of long-lived assets, including intangible assets       $ 0 $ 0 0
Fire            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Refundable insurance advance payment   $ 59,000,000 $ 79,000,000      
Cost of sales | Fire            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Inventory and fixed asset losses due to fulfillment center fire           158,000,000
Operating, general and administrative | Fire            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Inventory and fixed asset losses due to fulfillment center fire           $ 138,000,000
Cash and Cash Equivalents | Financial Institutions | Two Financial Institutions            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Concentration risk (in percentage)       47.00%    
Cash and Cash Equivalents | Financial Institutions | Three Financial Institutions            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Concentration risk (in percentage)         70.00%  
Accounts Receivable | Customer Concentration Risk | Three Payment Processing Companies            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Concentration risk (in percentage)       51.00% 41.00%  
Options            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Vesting period       4 years    
Common Class A            
Basis of Presentation of Summary of Significant Accounting Policies [Line Items]            
Sale of stock, number of shares issued in transaction (in shares) | shares 100          
Sale of stock, price per share (in usd per share) | $ / shares $ 35.00          
Proceeds from sale of stock, net $ 3,400,000,000