Short-Term Borrowings and Long-Term Debt - Narrative (Details) $ in Millions		1 Months Ended	12 Months Ended
	Jan. 30, 2024 USD ($)	Sep. 30, 2024	Dec. 31, 2024 USD ($)	Jan. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Total principal long-term debt			$ 1,071			$ 735
Borrowing Limit			$ 1,946
Farfetch Holdings | Farfetch term loans | Subsidiary of Limited Partnership
Debt Instrument [Line Items]
Variable interest rate (in percent)	6.25%
Borrowing Limit	$ 575
Farfetch Term Loan repayment	$ 58
Term loan acquired through credit agreement quarterly repayments (in percent)	0.0025
Farfetch Holdings | Farfetch term loans | Subsidiary of Limited Partnership | Subsequent event
Debt Instrument [Line Items]
Debt instrument, repurchase amount				$ 148
Farfetch Holdings | Farfetch term loans | Subsidiary of Limited Partnership | Subsequent event | Maximum
Debt Instrument [Line Items]
Debt instrument, covenant, loan prepayment				$ 125
Line of credit | Farfetch term loans
Debt Instrument [Line Items]
Variable interest rate (in percent)			6.25%
Total principal long-term debt			$ 493			$ 0
Borrowing Limit			493
Taiwan Revolving Credit Facility | Line of credit | Taiwan Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument term		5 years
Borrowing limit, total initial borrowings			199
Line of credit, additional incremental borrowings			$ 296
Variable interest rate (in percent)		1.25%	1.25%
Total principal long-term debt			$ 151
February 2026 | Line of credit
Debt Instrument [Line Items]
Borrowing limit, total initial borrowings					$ 875
Line of credit, additional incremental borrowings					$ 1,250