Stock-based compensation (Fair Value Assumptions) (Details)	12 Months Ended
Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017
Volatility assumption on the basis of Avnet's Stock
Expected term (years)	6 years	6 years	6 years
Risk-free interest rate	2.80%	2.00%	1.90%
Weighted average volatility	23.10%	26.30%	27.90%
Dividend yield	1.80%	2.00%	1.50%

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Rate of weighted-average expected volatility for award under share-based payment arrangement.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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