Name:	ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The fair value of financial assets. [Refer: At fair value [member]; Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 25
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard
-URIDate 2021-03-24

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

The increase (decrease) in other comprehensive income or loss attributable to owners of the parent, as a result of a decrease in a designated risk component that was reasonably possible at the end of the reporting period. Excludes defined benefit plan obligations.

No definition available.

Name:	puk_IncreaseDecreaseInComprehensiveIncomeOrLossAttributableToOwnersOfParentDueToReasonablyPossibleDecreaseInDesignatedRiskComponent
Namespace Prefix:	puk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The net increase (decrease) in shareholders' equity, as a result of a decrease in a designated risk component that was reasonably possible at the end of the reporting period. Excludes defined benefit plan obligations.

No definition available.

Name:	puk_NetIncreaseDecreaseInShareholdersEquityDueToReasonablyPossibleDecreaseInDesignatedRiskComponent
Namespace Prefix:	puk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The reasonably possible percentage of the decrease in the designated risk component used to determine the value of financial instruments. Excludes defined benefit plan obligations.

No definition available.

Name:	puk_PercentageOfReasonablyPossibleDecreaseInRiskAssumption
Namespace Prefix:	puk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The proportion of ownership interest in a subsidiary, joint venture, associate or significant holding attributable to the entity, held indirectly.

No definition available.