Goodwill and Intangible Assets - Impairment (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Dec. 31, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Goodwill and Other Intangible Assets | |||||
| Impairments of goodwill | $ 902 | $ 326 | |||
| QxH | |||||
| Goodwill and Other Intangible Assets | |||||
| Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration] | Asset Impairment Charges | ||||
| Impairments of goodwill | $ 326 | $ 2,535 | 902 | $ 326 | |
| Accumulated goodwill impairment losses | $ 3,763 | $ 3,763 | |||
| QxH | Trade Names | |||||
| Goodwill and Other Intangible Assets | |||||
| Impairment of intangible assets | $ 578 | $ 180 | |||
| Zulily | |||||
| Goodwill and Other Intangible Assets | |||||
| Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration] | Asset Impairment Charges | ||||
| Impairments of goodwill | $ 226 | ||||
| Zulily | Trade Names | |||||
| Goodwill and Other Intangible Assets | |||||
| Impairment of intangible assets | $ 140 | ||||