XML 118 R107.htm IDEA: XBRL DOCUMENT
v3.23.1

Future Policy Benefits and Claims - Interest Accretion and Current Discount Rates (Details) | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Retirement and Income Solutions | Pension risk transfer |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 4.40% | 4.38%
Current discount rate | 4.96% | 5.31%
Retirement and Income Solutions | Individual fixed income annuities |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 4.21% | 4.22%
Current discount rate | 4.94% | 5.30%
Principal Asset Management | Principal International | Latin America | Individual fixed income annuities |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 4.24% | 4.24%
Current discount rate | 2.50% | 2.43%
Benefits and Protection | Specialty Benefits | Individual disability |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 4.01% | 4.03%
Current discount rate | 5.01% | 5.36%
Benefits and Protection | Life Insurance | Universal life |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 4.73% | 4.73%
Benefits and Protection | Life Insurance | Term life |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 4.85% | 4.89%
Current discount rate | 4.83% | 5.22%
Corporate | Long-term care insurance |  |
Future Policy Benefits and Claims |  |
Interest accretion rate | 6.16% | 6.16%
Current discount rate | 5.00% | 5.34%

X
- 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_LiabilityForFuturePolicyBenefitActivityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Current weighted-average discount rate used to measure liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (b)(6) -URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 29E -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117819541-158441 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitCurrentWeightedAverageDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Original weighted-average discount rate at contract issue date used to measure liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 29E -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117819541-158441 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (b)(6) -URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitWeightedAverageInterestAccretionRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pfg_SegmentRetirementAndIncomeSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pfg_PensionRiskTransferMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_FixedAnnuityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pfg_SegmentPrincipalAssetManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=pfg_SubsegmentPrincipalInternationalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_LatinAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pfg_SegmentBenefitsAndProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=pfg_SubsegmentSpecialtyBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pfg_IndividualDisabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=pfg_SubsegmentLifeInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_UniversalLifeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_TermLifeInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pfg_SegmentCorporateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pfg_LongTermCareInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |