Non-Controlling Interests - Changes in Ownership (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Noncontrolling Interest [Abstract]
Decrease as a result of issuances of Class A common stock	$ 0	$ (554)
Increase as a result of exchanges of LLC Units	1	1
Total transfers from non-controlling interests	$ 1	$ (553)

Noncontrolling Interest, Increase (Decrease) In Additional Paid In Capital As A Result Of Adjustments To The Noncontrolling Interests And Organizational Transactions

No definition available.

Name:	cvna_NoncontrollingInterestIncreaseDecreaseInAdditionalPaidInCapitalAsAResultOfAdjustmentsToTheNoncontrollingInterestsAndOrganizationalTransactions
Namespace Prefix:	cvna_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration