Commitments and Contingencies (Details) $ in Millions			1 Months Ended	3 Months Ended		5 Months Ended
	Jun. 10, 2026 USD ($)	May 01, 2025 USD ($)	Jun. 30, 2021 subsidiary	Jun. 30, 2026 USD ($)	Jun. 30, 2024 USD ($) paymentInstallment	Dec. 31, 2023 action
Other Commitments [Line Items]
Number of legal actions filed against former and current directors and officers | action						3
KFTC vs Coupang
Other Commitments [Line Items]
Number of subsidiaries involved in litigation | subsidiary			2
Number of penalty payment installments | paymentInstallment					6
Penalty payment term (in years)					2 years
KFTC vs Coupang | Maximum
Other Commitments [Line Items]
Loss contingency, damages sought, value		$ 0.2
KFTC vs Coupang | Judicial ruling
Other Commitments [Line Items]
Loss contingency, damages awarded					$ 121.0
PIPC Incident
Other Commitments [Line Items]
Loss contingency, damages sought, value	$ 278.0
PIPC Fine, Unrelated Incident
Other Commitments [Line Items]
Loss contingency, damages sought, value	$ 132.0
PIPC Fines
Other Commitments [Line Items]
Loss contingency accrual, period increase (decrease)				$ 410.0