Statement Of Comprehensive Income [Abstract]
| Concept |
2021-06-27 to 2022-07-02 |
2021-06-27 to 2022-07-02 |
2021-06-27 to 2022-07-02 |
2021-06-27 to 2022-07-02 |
2021-06-27 to 2022-07-02 |
2021-06-27 to 2022-07-02 |
2021-06-27 to 2022-07-02 |
2020-06-28 to 2021-06-26 |
2020-06-28 to 2021-06-26 |
2020-06-28 to 2021-06-26 |
2020-06-28 to 2021-06-26 |
2020-06-28 to 2021-06-26 |
2020-06-28 to 2021-06-26 |
2020-06-28 to 2021-06-26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
171,200,000.0
GBP
|
—
GBP
|
—
GBP
|
171,200,000.0
GBP
|
—
GBP
|
—
GBP
|
171,200,000.0
GBP
|
128,900,000.0
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
128,900,000.0
GBP
|
—
GBP
|
128,900,000.0
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Cash flow hedges [abstract] | ||||||||||||||
| Other comprehensive income, before tax, cash flow hedges |
32,400,000.0
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
32,400,000.0
GBP
|
—
GBP
|
32,400,000.0
GBP
|
17,700,000.0
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
17,700,000.0
GBP
|
17,700,000.0
GBP
|
| Other comprehensive income |
27,100,000.0
GBP
|
— | — | — | — | — | — |
15,500,000.0
GBP
|
— | — | — | — | — | — |
| Comprehensive income |
198,300,000.0
GBP
|
—
GBP
|
—
GBP
|
171,200,000.0
GBP
|
27,100,000.0
GBP
|
—
GBP
|
198,300,000.0
GBP
|
113,400,000.0
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
128,900,000.0
GBP
|
15,500,000.0
GBP
|
113,400,000.0
GBP
|