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Share Purchases and Redemptions - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2025
Temporary Equity Disclosure [Abstract]
Share purchases and redemptions, settlement of each creation or redemption period	2 days

X

- Definition

Share purchase and redemptions settlement period creation and redemption.

+ References

No definition available.

+ Details

Name:	fxa_SharePurchaseAndRedemptionsSettlementPeriodCreationAndRedemption
Namespace Prefix:	fxa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TemporaryEquityDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration