Statement Of Cash Flows [Abstract]

Next PLC - Filing #4998747

Concept	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	2021-01-31 to 2022-01-29	As at 2022-01-29	As at 2021-01-31	As at 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	2020-01-26 to 2021-01-30	As at 2020-01-26
Statement of cash flows [abstract]
Cash flows from (used in) operating activities [abstract]
Profit (loss)	677,500,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	677,500,000 GBP	– GBP	– GBP	– GBP	—	—	—	– GBP	– GBP	286,700,000 GBP	– GBP	286,700,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	—
Adjustments to reconcile profit (loss) [abstract]
Adjustments for decrease (increase) in inventories	—	—	—	—	—	—	96,500,000 GBP	—	—	—	—	—	—	—	—	—	—	9,600,000 GBP	—	—	—	—	—	—
Adjustments for unrealised foreign exchange losses (gains)	—	—	—	—	—	—	1,600,000 GBP	—	—	—	—	—	—	—	—	—	—	1,100,000 GBP	—	—	—	—	—	—
Adjustments for share-based payments	—	—	—	—	—	—	19,900,000 GBP	—	—	—	—	—	—	—	—	—	—	16,700,000 GBP	—	—	—	—	—	—
Cash flows from (used in) operations	—	—	—	—	—	—	1,096,700,000 GBP	—	—	—	—	—	—	—	—	—	—	938,000,000 GBP	—	—	—	—	—	—
Income taxes paid (refund), classified as operating activities	—	—	—	—	—	—	125,300,000 GBP	—	—	—	—	—	—	—	—	—	—	113,200,000 GBP	—	—	—	—	—	—
Cash flows from (used in) operating activities	—	—	—	—	—	—	971,400,000 GBP	—	—	—	—	—	—	—	—	—	—	824,800,000 GBP	—	—	—	—	—	—
Cash flows from (used in) investing activities [abstract]
Proceeds from sales of property, plant and equipment, classified as investing activities	—	—	—	—	—	—	3,400,000 GBP	—	—	—	—	—	—	—	—	—	—	500,000 GBP	—	—	—	—	—	—
Purchase of property, plant and equipment, classified as investing activities	—	—	—	—	—	—	243,600,000 GBP	—	—	—	—	—	—	—	—	—	—	144,600,000 GBP	—	—	—	—	—	—
Purchase of intangible assets, classified as investing activities	—	—	—	—	—	—	22,700,000 GBP	—	—	—	—	—	—	—	—	—	—	16,700,000 GBP	—	—	—	—	—	—
Cash flows from (used in) investing activities	—	—	—	—	—	—	292,500,000 GBP	—	—	—	—	—	—	—	—	—	—	130,900,000 GBP	—	—	—	—	—	—
Cash flows from (used in) financing activities [abstract]
Payments to acquire or redeem entity's shares	—	—	—	—	—	—	8,700,000 GBP	—	—	—	—	—	—	—	—	—	—	19,300,000 GBP	—	—	—	—	—	—
Payments of lease liabilities, classified as financing activities	—	—	—	—	—	—	172,300,000 GBP	—	—	—	—	—	—	—	—	—	—	171,000,000 GBP	—	—	—	—	—	—
Dividends paid, classified as financing activities	—	—	—	—	—	—	344,500,000 GBP	—	—	—	—	—	—	—	—	—	—	– GBP	—	—	—	—	—	—
Interest paid, classified as financing activities	—	—	—	—	—	—	91,100,000 GBP	—	—	—	—	—	—	—	—	—	—	101,600,000 GBP	—	—	—	—	—	—
Cash flows from (used in) financing activities	—	—	—	—	—	—	993,400,000 GBP	—	—	—	—	—	—	—	—	—	—	231,700,000 GBP	—	—	—	—	—	—
Increase (decrease) in cash and cash equivalents before effect of exchange rate changes	—	—	—	—	—	—	314,500,000 GBP	—	—	—	—	—	—	—	—	—	—	462,200,000 GBP	—	—	—	—	—	—
Effect of exchange rate changes on cash and cash equivalents [abstract]
Effect of exchange rate changes on cash and cash equivalents	—	—	—	—	—	—	400,000 GBP	—	—	—	—	—	—	—	—	—	—	300,000 GBP	—	—	—	—	—	—
Cash and cash equivalents	—	—	—	—	—	—	—	—	—	—	199,900,000 GBP	514,800,000 GBP	514,800,000 GBP	—	—	—	—	—	—	—	—	—	—	52,900,000 GBP