v3.25.4

Insurance business - (E) Summary of contractual service margin and risk adjustment (Details) - GBP (£) £ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | £ 4,295 | £ 4,179
Total risk adjustment | 930 | 841
Total | 5,225 | 5,020
Life |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 4,295 | 4,179
Total risk adjustment | 907 | 823
Total | 5,202 | 5,002
Non-life |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 0 | 0
Total risk adjustment | 23 | 18
Total | 23 | 18
Insurance and participating investment contracts |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 4,385 | 4,646
Total risk adjustment | 969 | 910
Insurance and participating investment contracts | Disposal group |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 0 | 544
Total risk adjustment | 0 | 36
Insurance and participating investment contracts | Life |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 4,385 | 4,646
Total risk adjustment | 946 | 891
Insurance and participating investment contracts | Non-life |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 0 | 0
Total risk adjustment | 23 | 19
Reinsurance contract liabilities |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | (90) | (467)
Total risk adjustment | (39) | (69)
Reinsurance contract liabilities | Disposal group |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 0 | (426)
Total risk adjustment | 0 | (36)
Reinsurance contract liabilities | Life |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | (90) | (467)
Total risk adjustment | (39) | (68)
Reinsurance contract liabilities | Non-life |  |
Disclosure of information about expected recognition of contractual service margin in profit or loss [line items] |  |
Total CSM | 0 | 0
Total risk adjustment | £ 0 | £ (1)

X
- Definition The amount of the contractual service margin. [Refer: Contractual service margin [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 17 -IssueDate 2025-01-01 -Paragraph 109 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2025-en-r&anchor=para_109&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_ContractualServiceMargin
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfInformationAboutExpectedRecognitionOfContractualServiceMarginInProfitOrLossLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual Service Margin and Risk Adjustment + References No definition available. + Details
Name: | lyg_ContractualServiceMarginAndRiskAdjustment
Namespace Prefix: | lyg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Risk Adjustment + References No definition available. + Details
Name: | lyg_RiskAdjustment
Namespace Prefix: | lyg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_InsuranceContractsAxis=ifrs-full_InsuranceContractsOtherThanThoseToWhichPremiumAllocationApproachHasBeenAppliedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_InsuranceContractsAxis=ifrs-full_InsuranceContractsToWhichPremiumAllocationApproachHasBeenAppliedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_DisaggregationOfInsuranceContractsAxis=ifrs-full_InsuranceContractsIssuedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ContinuingAndDiscontinuedOperationsAxis=ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_DisaggregationOfInsuranceContractsAxis=ifrs-full_ReinsuranceContractsHeldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |