Statement Of Cash Flows [Abstract]
| Concept |
2022-10-01 to 2023-09-30 |
2021-10-01 to 2022-09-30 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for dividend income |
7,000,000
GBP
|
7,000,000
GBP
|
| Cash flows from (used in) operations before changes in working capital |
4,066,000,000
GBP
|
3,827,000,000
GBP
|
| Increase (decrease) in working capital |
347,000,000
GBP
|
40,000,000
GBP
|
| Adjustments for decrease (increase) in trade and other receivables |
46,000,000
GBP
|
89,000,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
158,000,000
GBP
|
146,000,000
GBP
|
| Adjustments for increase (decrease) in employee benefit liabilities |
29,000,000
GBP
|
56,000,000
GBP
|
| Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss |
632,000,000
GBP
|
660,000,000
GBP
|
| Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates |
1,000,000
GBP
|
428,000,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations |
71,000,000
GBP
|
53,000,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
1,312,000,000
GBP
|
1,320,000,000
GBP
|
| Dividends paid to non-controlling interests, classified as financing activities |
104,000,000
GBP
|
89,000,000
GBP
|
| Payments for share issue costs |
1 ,006
GBP
|
–
GBP
|