Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2021-02-01 to 2022-01-31 |
2021-02-01 to 2022-01-31 |
2021-02-01 to 2022-01-31 |
2020-02-01 to 2021-01-31 |
2020-02-01 to 2021-01-31 |
2020-02-01 to 2021-01-31 |
|---|---|---|---|---|---|---|
| Statement of changes in net assets available for benefits [abstract] | ||||||
| Reconciliation of changes in net assets available for benefits [abstract] | ||||||
| Changes in net assets available for benefits [abstract] | ||||||
| Other income |
3,000,000
GBP
|
23,000,000
GBP
|
26,000,000
GBP
|
13,000,000
GBP
|
19,000,000
GBP
|
32,000,000
GBP
|
| Administrative expenses |
13,000,000
GBP
|
836,000,000
GBP
|
823,000,000
GBP
|
6,000,000
GBP
|
809,000,000
GBP
|
815,000,000
GBP
|
| Other expense, by function |
–
GBP
|
–
GBP
|
–
GBP
|
49,000,000
GBP
|
–
GBP
|
49,000,000
GBP
|
| Tax expense (income) |
48,000,000
GBP
|
212,000,000
GBP
|
164,000,000
GBP
|
18,000,000
GBP
|
182,000,000
GBP
|
164,000,000
GBP
|