CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (266)	$ 114
Other comprehensive loss:
Foreign currency translation adjustments, net of tax	(160)	(5)
Actuarial gain on defined severance benefits, net of tax	1	2
Total other comprehensive loss	(159)	(3)
Comprehensive (loss) income	(425)	111
Comprehensive income attributable to noncontrolling interests	0	4
Comprehensive (loss) income attributable to Coupang stockholders	$ (425)	$ 107

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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