CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 64	$ 91	$ (65)	$ 327
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	148	(26)	(36)	(53)
Actuarial gain (loss) on defined severance benefits, net of tax	1	2	4	(7)
Total other comprehensive income (loss)	149	(24)	(32)	(60)
Comprehensive income (loss)	213	67	(97)	267
Comprehensive loss attributable to noncontrolling interests	(4)	0	(61)	0
Comprehensive income (loss) attributable to Coupang stockholders	$ 217	$ 67	$ (36)	$ 267