v3.26.1
STOCK-BASED PLANS (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense $ 284 $ 267
Capitalized as part of internal use software and website development costs 31 35
Customer support and operations    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 49 51
Sales and marketing    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 35 33
Technology and development    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 126 111
General and administrative    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense $ 74 $ 72