XML 90 R74.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Nature of Operations and Significant Accounting Policies - Pre-tax Impacts To Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Increase to income before taxes |  |  |
Deferred acquisition costs amortization | $ (389.8) | $ (386.9) | $ (373.4)
Cost of reinsurance amortization | (17.7) | (19.3) | (23.0)
Income (loss) before income taxes | $ 738.8 | 5,987.0 | $ 1,910.9
Adjustment related to actuarial balance re-cohorting |  |  |
Increase to income before taxes |  |  |
Cost of reinsurance amortization |  | 33.7 |
Change in additional liability for certain benefit features |  | 167.4 |
Income (loss) before income taxes |  | 201.1 |
Increase to pre-tax other comprehensive income |  |  |
Cost of reinsurance unrealized gains (losses) |  | (2.1) |
Change in additional liability for certain benefit features unrealized gains |  | 7.8 |
Total increase to pre-tax other comprehensive income |  | 5.7 |
Total increase to pre-tax comprehensive income |  | $ 206.8 |

X
- Definition The increase (decrease) to income related to the increase (decrease) in liability for certain benefit features. + References No definition available. + Details
Name: | pfg_ChangeInAdditionalLiabilityForCertainBenefitFeatures
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The unrealized gain (loss) related to the increase (decrease) in liability for certain benefit features. + References No definition available. + Details
Name: | pfg_ChangeInAdditionalLiabilityForCertainBenefitFeaturesUnrealizedGains
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of expense related to the cost of reinsurance amortization. + References No definition available. + Details
Name: | pfg_CostOfReinsuranceAmortization
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) to income related to the cost of reinsurance unrealized gains (losses). + References No definition available. + Details
Name: | pfg_CostOfReinsuranceUnrealizedGainsLosses
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The sum of income (expense), including income (expense) attributable to the noncontrolling interest, before income taxes for continuing operations. + References No definition available. + Details
Name: | pfg_IncomeLossFromContinuingOperationsBeforeIncomeTaxes
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase To Income Before Taxes [Abstract] + References No definition available. + Details
Name: | pfg_IncreaseToIncomeBeforeTaxesAbstract
Namespace Prefix: | pfg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase To Pre-Tax Other Comprehensive Income [Abstract] + References No definition available. + Details
Name: | pfg_IncreaseToPreTaxOtherComprehensiveIncomeAbstract
Namespace Prefix: | pfg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of increase to pre-tax comprehensive income. + References No definition available. + Details
Name: | pfg_TotalIncreaseToPreTaxComprehensiveIncome
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of change in Pre-Tax Other Comprehensive Income. + References No definition available. + Details
Name: | pfg_TotalIncreaseToPreTaxOtherComprehensiveIncome
Namespace Prefix: | pfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of amortization expense (reversal of expense) for deferred policy acquisition costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479432/944-30-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479432/944-30-50-2B Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479401/944-30-55-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479868/944-20-45-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(7)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479432/944-30-50-1 + Details
Name: | us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ReclassificationTypeAxis=pfg_ReclassificationActuarialBalanceRecohortingUlsgBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |