Statement Of Changes In Equity [Abstract]

Barratt Developments PLC - Filing #1771111

Concept	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2021-07-01 to 2022-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30	2020-07-01 to 2021-06-30
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Dividends recognised as distributions to owners of parent	337,000,000 GBP	– GBP	337,000,000 GBP	– GBP	– GBP	– GBP	– GBP	337,000,000 GBP	– GBP	– GBP	– GBP	– GBP	76,300,000 GBP	– GBP	– GBP	– GBP	76,300,000 GBP	76,300,000 GBP
Dividends recognised as distributions to non-controlling interests	– GBP	– GBP	400,000 GBP	– GBP	– GBP	– GBP	400,000 GBP	– GBP	– GBP	– GBP	– GBP	600,000 GBP	600,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP
Increase (decrease) through exercise of options, equity	12,000,000 GBP	– GBP	1,900,000 GBP	6,200,000 GBP	– GBP	20,100,000 GBP	– GBP	1,900,000 GBP	– GBP	– GBP	12,200,000 GBP	– GBP	7,000,000 GBP	– GBP	– GBP	15,400,000 GBP	3,800,000 GBP	7,000,000 GBP
Decrease (increase) through tax on share-based payment transactions, equity	1,800,000 GBP	– GBP	900,000 GBP	– GBP	– GBP	2,700,000 GBP	– GBP	900,000 GBP	– GBP	– GBP	2,800,000 GBP	– GBP	2,900,000 GBP	– GBP	– GBP	– GBP	100,000 GBP	2,900,000 GBP
Purchase of treasury shares	– GBP	– GBP	28,500,000 GBP	28,500,000 GBP	– GBP	– GBP	– GBP	28,500,000 GBP	– GBP	—	—	—	—	—	—	—	—	—