Derivative financial instruments (Details) - GBP (£) £ in Millions	Jun. 30, 2022	Dec. 31, 2021
Trading and other
Fair value of assets	£ 29,537	£ 21,965
Fair value of liabilities	26,057	17,733
Hedging
Fair value of assets	197	86
Fair value of liabilities	474	327
Total recognised derivative assets	29,734	22,051
Total recognised derivative liabilities	26,531	18,060
Fair value hedges
Hedging
Fair value of assets	51	53
Fair value of liabilities	461	308
Cash flow hedges
Hedging
Fair value of assets	146	33
Fair value of liabilities	13	19
Exchange rate contracts \| Trading and other
Trading and other
Fair value of assets	8,748	4,433
Fair value of liabilities	8,494	4,262
Interest rate contracts \| Trading and other
Trading and other
Fair value of assets	18,811	16,702
Fair value of liabilities	15,702	12,418
Credit derivatives \| Trading and other
Trading and other
Fair value of assets	248	95
Fair value of liabilities	199	175
Equity and other contracts \| Trading and other
Trading and other
Fair value of assets	1,730	735
Fair value of liabilities	£ 1,662	£ 878

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_DerivativeFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of derivative financial assets held for hedging. [Refer: Derivative financial assets]

+ References

+ Details

Name:	ifrs-full_DerivativeFinancialAssetsHeldForHedging
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of derivative financial assets held for trading. [Refer: Derivative financial assets; Financial assets at fair value through profit or loss, classified as held for trading]

+ References

+ Details

Name:	ifrs-full_DerivativeFinancialAssetsHeldForTrading
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

+ Details

Name:	ifrs-full_DerivativeFinancialLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of derivative financial liabilities held for hedging. [Refer: Derivative financial liabilities]

+ References

+ Details

Name:	ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of derivative financial liabilities held for trading. [Refer: Derivative financial liabilities; Financial liabilities at fair value through profit or loss that meet definition of held for trading]

+ References

+ Details

Name:	ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Trading Contracts

+ References

No definition available.

+ Details

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

- Details

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_FairValueHedgesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_CashFlowHedgesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=lyg_ExchangeRateContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=lyg_InterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=lyg_CreditDerivativesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=lyg_EquityAndOtherContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: