Share Purchases and Redemptions - Additional Information (Detail)	3 Months Ended
Mar. 31, 2024 CreationUnit shares
Equity [Abstract]
Minimum number of Creation Units that can be purchased	1
Number of shares issued per Creation Unit \| shares	50,000
Minimum number of Creation Units that can be redeemed	1

Minimum number of creation units of shares that can be purchased.

No definition available.

Name:	dbc_MinimumNumberOfCreationUnitsOfSharesThatCanBePurchased
Namespace Prefix:	dbc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration