Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for finance income (cost) |
5,149,000,000
GBP
|
4,491,000,000
GBP
|
| Adjustments for increase (decrease) in deferred income including contract liabilities [abstract] | ||
| Adjustments for increase (decrease) in contract liabilities |
671,000,000
GBP
|
2,982,000,000
GBP
|
| Adjustments for decrease (increase) in other assets |
509,000,000
GBP
|
2,014,000,000
GBP
|
| Adjustments for increase (decrease) in other liabilities |
679,000,000
GBP
|
4,378,000,000
GBP
|
| Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities |
167,000,000
GBP
|
18,976,000,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
462,000,000
GBP
|
465,000,000
GBP
|
| Dividends paid to non-controlling interests, classified as financing activities |
13,000,000
GBP
|
14,000,000
GBP
|