Segment Reporting - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	$ 8,524	$ 7,323	$ 16,432	$ 14,437
Total cost of sales	5,963	5,181	11,555	10,366
Total gross profit	2,561	2,142	4,877	4,071
Total other segments items	2,133	1,812	4,067	3,460
Total segment adjusted EBITDA	428	330	810	611
Reconciliations of segment profit or loss
Total gross profit	2,561	2,142	4,877	4,071
Operating, general and administrative	(2,412)	(2,167)	(4,574)	(4,056)
Total segment adjusted EBITDA	428	330	810	611
Interest expense	(25)	(37)	(48)	(64)
Interest income	51	53	100	108
Other income, net	19	12	55	3
Income before income taxes	194	3	410	62
Operating segments | Product Commerce
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	7,334	6,431	14,204	12,925
Total cost of sales	4,944	4,481	9,663	9,139
Total gross profit	2,390	1,950	4,541	3,786
Total other segments items	1,727	1,420	3,328	2,789
Total segment adjusted EBITDA	663	530	1,213	997
Reconciliations of segment profit or loss
Total gross profit	2,390	1,950	4,541	3,786
Total segment adjusted EBITDA	663	530	1,213	997
Operating segments | Developing Offerings
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	1,190	892	2,228	1,512
Total cost of sales	1,019	700	1,892	1,227
Total gross profit	171	192	336	285
Total other segments items	406	392	739	671
Total segment adjusted EBITDA	(235)	(200)	(403)	(386)
Reconciliations of segment profit or loss
Total gross profit	171	192	336	285
Total segment adjusted EBITDA	(235)	(200)	(403)	(386)
Segment reconciling items
Reconciliations of segment profit or loss
Operating, general and administrative	(2,412)	(2,167)	(4,574)	(4,056)
Depreciation and amortization	(126)	(106)	(248)	(201)
Equity-based compensation	(113)	(109)	(234)	(197)
Acquisition and restructuring related losses, net	(40)	(19)	(25)	(77)
KFTC administrative fine	0	(121)	0	(121)
Interest expense	(25)	(37)	(48)	(64)
Interest income	51	53	100	108
Other income, net	$ 19	$ 12	$ 55	$ 3