INSURANCE CLAIMS - Schedule of Insurance Claims (Details) - GBP (£) £ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Life insurance and investment contracts
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities	£ (6,588)	£ (993)	£ (2,625)
Non-participating investment contracts
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities	(6,588)	(993)	(2,625)
Reinsurers’ share	(16)	(14)
Insurance claims	(21,120)	(14,041)	(23,997)
Insurance claims
Life insurance and investment contracts
Claims and surrenders	(9,063)	(7,670)	(8,684)
Non-participating investment contracts
Reinsurers’ share	285	418	290
Receipts from premiums and claims, annuities and other policy benefits	(20,833)	(13,780)	(23,691)
Change in unallocated surplus	35	57	(19)
Insurance claims	(21,120)	(14,041)	(23,997)
Insurance claims \| Deaths
Life insurance and investment contracts
Claims and surrenders	(790)	(694)	(674)
Insurance claims \| Maturities
Life insurance and investment contracts
Claims and surrenders	(1,022)	(873)	(1,122)
Insurance claims \| Surrenders
Life insurance and investment contracts
Claims and surrenders	(5,893)	(4,641)	(5,523)
Insurance claims \| Annuities
Life insurance and investment contracts
Claims and surrenders	(1,194)	(1,171)	(1,104)
Insurance claims \| Other
Life insurance and investment contracts
Claims and surrenders	(164)	(291)	(261)
Insurance claims \| Other assets
Non-participating investment contracts
Reinsurers’ share	290
Insurance claims \| Financial assets at fair value through profit or loss
Non-participating investment contracts
Reinsurers’ share	(5)
Insurance claims \| Life insurance and investment contracts
Non-participating investment contracts
Insurance claims	(20,798)	(13,723)	(23,710)
Insurance claims \| Total non-life insurance claims, net of reinsurance
Non-participating investment contracts
Insurance claims	(322)	(318)	(287)
Insurance claims \| Total non-life insurance claims, net of reinsurance \| Weather-related claims, net of reinsurance
Non-participating investment contracts
Insurance claims	£ (30)
Percentage decrease in claims and benefits paid, net of reinsurance recoveries	36.00%
Participating investment contracts \| Insurance claims
Life insurance and investment contracts
Change in insurance and participating investment contracts (note 30)	£ (7,474)	(4,590)	(12,633)
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities	(16,537)	(12,260)	(21,317)
Non-participating investment contracts
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities	(16,537)	(12,260)	(21,317)
Non-participating investment contracts \| Insurance claims
Life insurance and investment contracts
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities	(21,118)	(14,198)	(23,981)
Non-participating investment contracts
Change in non-participating investment contracts	(4,581)	(1,938)	(2,664)
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities	£ (21,118)	£ (14,198)	£ (23,981)

Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Investment contracts liabilities; Liabilities under insurance contracts and reinsurance contracts issued; Profit (loss)]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2021-01-01
-Paragraph 20
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_AdjustmentsForIncreaseDecreaseInInsuranceReinsuranceAndInvestmentContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of claims and benefits paid to policyholders, net of reinsurance recoveries.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2023-01-01
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-b&anchor=para_85&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ClaimsAndBenefitsPaidNetOfReinsuranceRecoveries
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of expense for policyholder claims and benefits, without any reduction for reinsurance held.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 4
-IssueDate 2021-01-01
-Paragraph IG24
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_IG24_c&doctype=Implementation%20Guidance&book=b
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 4
-IssueDate 2021-01-01
-Paragraph 37
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_37_b&doctype=Standard&book=b
-URIDate 2021-03-24

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-b&anchor=para_85&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ExpenseForPolicyholderClaimsAndBenefitsWithoutReductionForReinsuranceHeld
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of expenses relating to reinsurance contracts held.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 4
-IssueDate 2021-01-01
-Paragraph IG24
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_IG24_d&doctype=Implementation%20Guidance&book=b
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 4
-IssueDate 2021-01-01
-Paragraph 37
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_37_b&doctype=Standard&book=b
-URIDate 2021-03-24

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-b&anchor=para_85&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ExpensesArisingFromReinsuranceHeld
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of income from contracts with reinsurers.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 4
-IssueDate 2021-01-01
-Paragraph IG24
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_IG24_b&doctype=Implementation%20Guidance&book=b
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 4
-IssueDate 2021-01-01
-Paragraph 37
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_37_b&doctype=Standard&book=b
-URIDate 2021-03-24

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-b&anchor=para_85&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_IncomeFromContractsWithReinsurers
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from premiums and claims, annuities and other policy benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Note Expiry date 2023-01-01
-Name IAS
-Number 7
-IssueDate 2021-01-01
-Paragraph 14
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-b&anchor=para_14_e&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Change in unallocated surplus

+ References

No definition available.

+ Details

Name:	lyg_ChangeInUnallocatedSurplus
Namespace Prefix:	lyg_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	lyg_ExpenseIncomeFromChangeInInsuranceLiability
Namespace Prefix:	lyg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	lyg_ExpenseIncomeFromChangeInNonParticipatingInNonParticipatingInvestmentContractsLiability
Namespace Prefix:	lyg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	lyg_LifeInsuranceAndParticipatingInvestmentContractsAbstractAbstract
Namespace Prefix:	lyg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Non-Participating Investment Contracts

+ References

No definition available.

+ Details

Name:	lyg_NonParticipatingInvestmentContractsAbstract
Namespace Prefix:	lyg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage Increase (Decrease) In Claims And Benefits Paid, Net Of Reinsurance Recoveries

+ References

No definition available.

+ Details

Name:	lyg_PercentageIncreaseDecreaseInClaimsAndBenefitsPaidNetOfReinsuranceRecoveries
Namespace Prefix:	lyg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	lyg_LossContingenciesByNatureOfContingencyAxis=lyg_InsuranceClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lyg_ClassOfClaimsAndSurrendersAxis=lyg_DeathsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lyg_ClassOfClaimsAndSurrendersAxis=lyg_MaturitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lyg_ClassOfClaimsAndSurrendersAxis=lyg_SurrendersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lyg_ClassOfClaimsAndSurrendersAxis=lyg_AnnuitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lyg_ClassOfClaimsAndSurrendersAxis=lyg_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=ifrs-full_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_InsuranceContractsByComponentsAxis=lyg_LifeInsuranceAndParticipatingInvestmentContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_InsuranceContractsByComponentsAxis=lyg_NonlifeInsuranceNetOfReinsurranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lyg_ClassOfClaimsAndSurrendersAxis=lyg_WeatherRelatedClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_InsuranceContractsAxis=lyg_ParticipatingInvestmentContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_InsuranceContractsAxis=lyg_NonparticipatingInvestmentContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: