Litigation Settlements and Contingencies (Details)	12 Months Ended
Mar. 28, 2015
Contingencies (Textual) [Abstract]
Loss contingency, damages sought for each unspecified claim	11000

Loss Contingency, Damages Sought For Each Unspecified Claim

No definition available.

Name:	xlnx_LossContingencyDamagesSoughtForEachUnspecifiedClaim
Namespace Prefix:	xlnx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration