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Commitment and Contingencies (Details) - USD ($) $ in Millions | Jul. 28, 2021 | Sep. 28, 2024
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Commitments and Contingencies Disclosure [Abstract] |  |
Payments for capacity reservation fee | $ 60 |
Capacity reservation fee remaining |  | $ 24
Prepaid wafers | $ 195 |
Prepaid wafers balance |  | $ 110

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- Definition Payments For Purchase Commitment, Capacity Reservation Fee + References No definition available. + Details
Name: | crus_PaymentsForPurchaseCommitmentCapacityReservationFee
Namespace Prefix: | crus_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Payments For Purchase Commitments, Prepaid Wafers + References No definition available. + Details
Name: | crus_PaymentsForPurchaseCommitmentsPrepaidWafers
Namespace Prefix: | crus_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Purchase Commitments, Prepaid And Long-Term Prepaid Wafers + References No definition available. + Details
Name: | crus_PurchaseCommitmentsPrepaidAndLongTermPrepaidWafers
Namespace Prefix: | crus_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unamortized Capacity Reservation Fees + References No definition available. + Details
Name: | crus_UnamortizedCapacityReservationFees
Namespace Prefix: | crus_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration