Summary of Significant Accounting Policies - Allowance for Sales Returns (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Sales returns, beginning balance | $ 219 | $ 215 | $ 274 |
| Additions, charged to earnings | 1,734 | 1,898 | 1,917 |
| Deductions | (1,763) | (1,894) | (1,976) |
| Sales returns, ending balance | 190 | 219 | 215 |
| Advertising expense | 484 | 497 | 536 |
| Stock-based compensation | 32 | 53 | 60 |
| Selling, General and Administrative Expenses | |||
| Advertising expense | $ 484 | $ 497 | $ 536 |