Commitments and Contingent Liabilities (Narrative Excluding Litigation) (Details) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Commitments \| Commercial Mortgage Loans
Commitments and Contingent Liabilities [Line Items]
Allowance for credit losses	$ 1	$ 1
Change in allowance for credit loss expense (reversal)	0	0
Purchase Investments
Commitments and Contingent Liabilities [Line Items]
Change in allowance for credit loss expense (reversal)	$ 0	0
Indemnification \| Securities Lending and Securities Repurchase Transactions
Commitments and Contingent Liabilities [Line Items]
Guarantor Obligations, Liquidation Proceeds, Percentage	102.00%
Indemnification \| Securities Repurchase Transactions
Commitments and Contingent Liabilities [Line Items]
Guarantor Obligations, Liquidation Proceeds, Percentage	95.00%
Indemnification \| Serviced Mortgage Loans
Commitments and Contingent Liabilities [Line Items]
Allowance for credit losses	$ 17	20
Change in allowance for credit loss expense (reversal)	(3)	0
Mortgages subject to loss-sharing arrangements	$ 23,937	$ 22,963
Weighted-average debt service coverage ratio of mortgages subject to loss-sharing arrangements	1.92	1.93
Weighted-average loan-to-value ratio of mortgages subject to loss-sharing arrangements	61.00%	63.00%
Losses related to indemnifications that were settled	$ 0	$ 2
Indemnification \| Minimum \| Serviced Mortgage Loans
Commitments and Contingent Liabilities [Line Items]
Percentage share of losses incurred on certain loans serviced	4.00%
Indemnification \| Maximum \| Serviced Mortgage Loans
Commitments and Contingent Liabilities [Line Items]
Percentage share of losses incurred on certain loans serviced	20.00%

Average Debt Service Coverage Ratio Of Mortgages Subject To Loss Sharing Arrangements

No definition available.

Name:	pru_AverageDebtServiceCoverageRatioOfMortgagesSubjectToLossSharingArrangements
Namespace Prefix:	pru_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Average Loan To Value Ratio Of Mortgages Subject To Loss Sharing Arrangements

+ References

No definition available.

+ Details

Name:	pru_AverageLoanToValueRatioOfMortgagesSubjectToLossSharingArrangements
Namespace Prefix:	pru_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Dollar amount of loans serviced by the company that are subject to loss sharing agreements.

+ References

No definition available.

+ Details

Name:	pru_MortgagesSubjectToLossSharingArrangements
Namespace Prefix:	pru_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Indicates, if estimable, (as a percentage) the approximate extent to which the proceeds from liquidation of any assets held either as collateral or by third parties would be expected to cover the maximum potential amount of future payments under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248

+ Details

Name:	us-gaap_GuaranteeObligationsLiquidationProceedsPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

Name:	us-gaap_LossContingencyLossInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Ratio of non-life losses and loss expenses to non-life net premiums earned.

+ References

No definition available.

+ Details

Name:	us-gaap_LossRatio
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121611286&loc=d3e11927-110247

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82919202-210446

+ Details

Name:	us-gaap_OffBalanceSheetCreditLossLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

+ Details

Name:	us-gaap_OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherCommitmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_CommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_PurchaseCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_IndemnificationGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_SecuritiesFinancingTransactionFairValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_RepurchaseAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_MortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: