Segment Reporting - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total net revenues	$ 8,856	$ 8,524	$ 17,360	$ 16,432
Total cost of sales	6,362	5,963	12,569	11,555
Total gross profit	2,494	2,561	4,791	4,877
Total other segment items	2,331	2,133	4,599	4,067
Total segment adjusted EBITDA	163	428	192	810
Reconciliations of segment profit or loss
Total gross profit	2,494	2,561	4,791	4,877
Operating, general and administrative	(3,050)	(2,412)	(5,589)	(4,574)
Total segment adjusted EBITDA	163	428	192	810
Interest expense	(25)	(25)	(38)	(48)
Interest income	42	51	86	100
Other income (expense), net	6	19	(38)	55
(Loss) income before income taxes	(533)	194	(788)	410
Operating segments | Product Commerce
Segment Reporting [Line Items]
Total net revenues	7,425	7,334	14,601	14,204
Total cost of sales	5,157	4,944	10,159	9,663
Total gross profit	2,268	2,390	4,442	4,541
Total other segment items	1,886	1,727	3,702	3,328
Total segment adjusted EBITDA	382	663	740	1,213
Reconciliations of segment profit or loss
Total gross profit	2,268	2,390	4,442	4,541
Total segment adjusted EBITDA	382	663	740	1,213
Operating segments | Developing Offerings
Segment Reporting [Line Items]
Total net revenues	1,431	1,190	2,759	2,228
Total cost of sales	1,205	1,019	2,410	1,892
Total gross profit	226	171	349	336
Total other segment items	445	406	897	739
Total segment adjusted EBITDA	(219)	(235)	(548)	(403)
Reconciliations of segment profit or loss
Total gross profit	226	171	349	336
Total segment adjusted EBITDA	(219)	(235)	(548)	(403)
Segment reconciling items
Reconciliations of segment profit or loss
Operating, general and administrative	(3,050)	(2,412)	(5,589)	(4,574)
Depreciation and amortization	(145)	(126)	(288)	(248)
Equity-based compensation	(164)	(113)	(292)	(234)
Acquisition and restructuring related losses, net	0	(40)	0	(25)
Certain administrative fines	(410)	0	(410)	0
Interest expense	(25)	(25)	(38)	(48)
Interest income	42	51	86	100
Other income (expense), net	$ 6	$ 19	$ (38)	$ 55