Invesco BulletShares 2027 Treasury Bond ETF Invesco BulletShares 2028 Treasury Bond ETF Invesco BulletShares 2029 Treasury Bond ETF Invesco BulletShares 2030 Treasury Bond ETF Invesco BulletShares 2031 Treasury Bond ETF Invesco BulletShares 2027 Treasury Bond ETF Invesco BulletShares 2028 Treasury Bond ETF Invesco BulletShares 2029 Treasury Bond ETF Invesco BulletShares 2030 Treasury Bond ETF Invesco BulletShares 2031 Treasury Bond ETF Market Risk [Member] Index Risk [Member] Fixed-Income Securities Risk [Member] U.S. Treasury Obligations Risk [Member] Changing Fixed-Income Market Conditions Risk [Member] Industry Concentration Risk [Member] Fluctuation of Yield and Liquidation Amount Risk [Member] Extension Risk [Member] Reinvestment Risk [Member] Declining Yield Risk [Member] Issuer-Specific Changes Risk [Member] Valuation Risk [Member] Sampling Risk [Member] Non-Correlation Risk [Member] Authorized Participant Concentration Risk [Member] Market Trading Risk [Member] Operational Risk [Member] Shares May Trade at Prices Different than NAV [Member] C000276139 Member S000105382 Member Fluctuation Of Yield And Liquidation Amount Risk Member S000105380 Member S000105379 Member Fixed Income Securities Risk Member Declining Yield Risk Member Operational Risk Member Market Trading Risk Member Changing Fixed Income Market Conditions Risk Member C000276136 Member S000105378 Member Market Risk Member Extension Risk Member S000105381 Member Sampling Risk Member USTreasury Obligations Risk Member Issuer Specific Changes Risk Member Non Correlation Risk Member Valuation Risk Member Industry Concentration Risk Member C000276138 Member Index Risk Member C000276140 Member C000276137 Member Shares May Trade At Prices Different Than NAVMember Reinvestment Risk Member Authorized Participant Concentration Risk Member