Segment Reporting - Schedule of segment reporting information by segment (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues		$ 30,268	$ 24,383	$ 20,583
Cost of sales		21,437	18,193	15,873
Gross profit		8,831	6,190	4,710
Operating, general and administrative		(8,395)	(5,717)	(4,822)
Total segment adjusted EBITDA		1,375	1,074	381
Reconciling items:
Equity-based compensation		(433)	(326)	(262)
FC Fire insurance gain	$ 175	175	0	0
Interest expense		(140)	(48)	(27)
Interest income		216	178	53
Other expense, net		(39)	(19)	(7)
Income (loss) before income taxes		473	584	(93)
Operating Segments | Product Commerce
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues		26,699	23,594	19,955
Cost of sales		18,594	17,313	15,280
Gross profit		8,105	6,282	4,675
Total segment adjusted EBITDA		2,006	1,540	606
Operating Segments | Developing Offerings
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues		3,569	789	628
Cost of sales		2,843	880	593
Gross profit		726	(91)	35
Total segment adjusted EBITDA		(631)	(466)	(225)
Reconciling items:
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating, general and administrative		(8,395)	(5,717)	(4,822)
Reconciling items:
Depreciation and amortization		(433)	(275)	(231)
Equity-based compensation		(433)	(326)	(262)
Acquisition and restructuring related costs		(127)	0	0
KFTC administrative fine (see Note 14)		(121)	0	0
FC Fire insurance gain		175	0	0
Interest expense		(140)	(48)	(27)
Interest income		216	178	53
Other expense, net		(39)	(19)	(7)
Income (loss) before income taxes		$ 473	$ 584	$ (93)