0002102713 2026-07-21 2026-07-21 0002102713 kcac:UnitsEachConsistingOfOneClassAOrdinaryShare00001ParValueOneQuarterOfOneClass1RedeemableWarrantAndThreeQuartersOfOneClass2RedeemableWarrant2Member 2026-07-21 2026-07-21 0002102713 us-gaap:CapitalUnitClassAMember 2026-07-21 2026-07-21 0002102713 kcac:Class1RedeemableWarrantsEachExercisableForOneClassAOrdinaryShareAtAnExercisePriceOf1150Member 2026-07-21 2026-07-21 0002102713 kcac:Class2RedeemableWarrantsEachExercisableForOneClassAOrdinaryShare00001ParValueAtAnExercisePriceOf1150Member 2026-07-21 2026-07-21 0002102713 kcac:NewUnitsEachConsistingOfOneClassAOrdinaryShare00001ParValueAndThreeQuartersOfOneClass2RedeemableWarrant1Member 2026-07-21 2026-07-21 false 0002102713 Units, each consisting of one Class A ordinary share, $0.0001 par value, one-quarter of one Class 1 redeemable warrant and three-quarters of one 8-K 2026-07-21 Kensington Capital Acquisition Corp. VI E9 001-43176 98-1901948 1400 Old Country Road Suite 301 Westbury NY 11590 (703) 674-6514 true false false false KCAC.U NYSE Class A ordinary shares, par value $0.0001 per share KCAC NYSE Class 1 redeemable warrants, each exercisable for one Class A ordinary share at an exercise price of $11.50 KCAC.W NYSE Class 2 redeemable warrants, each exercisable for one Class A ordinary share, $0.0001 par value, at an exercise price of $11.50 KCAC.W NYSE New units, each consisting of one Class A ordinary share, $0.0001 par value, and three-quarters of one Class 2 redeemable warrant KCA.U NYSE true false