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Revenues from Contracts with Customers - Disaggregation within Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total fees and other revenues | $ 1,143.0 | $ 1,230.0 | $ 3,332.6 | $ 3,210.1
Premiums and other considerations | 1,184.3 | 2,274.2 | 4,628.4 | 5,932.0
Net investment income (loss) | 917.9 | 996.6 | 2,846.1 | 2,994.7
Operating Segments |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 681.9 | 692.0 | 2,035.6 | 1,840.4
Total operating revenues | 3,292.4 | 4,523.8 | 10,903.1 | 12,206.7
Operating Segments | Retirement and Income Solutions |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 135.5 | 158.3 | 447.2 | 285.8
Total operating revenues | 1,579.9 | 2,573.1 | 5,665.6 | 6,624.6
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 133.4 | 156.0 | 441.0 | 278.3
Fees and other revenues not within the scope of revenue recognition guidance | 293.5 | 301.2 | 829.1 | 854.6
Total fees and other revenues | 426.9 | 457.2 | 1,270.1 | 1,132.9
Premiums and other considerations | 0.7 | 1.0 | 3.4 | 2.7
Net investment income (loss) | 104.0 | 101.2 | 310.6 | 305.1
Total operating revenues | 531.6 | 559.4 | 1,584.1 | 1,440.7
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee | Administrative service fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 132.8 | 155.5 | 439.7 | 277.0
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee | Other fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 0.6 | 0.5 | 1.3 | 1.3
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Spread |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 2.1 | 2.3 | 6.2 | 7.5
Fees and other revenues not within the scope of revenue recognition guidance | 1.9 | 2.6 | 7.8 | 11.7
Total fees and other revenues | 4.0 | 4.9 | 14.0 | 19.2
Premiums and other considerations | 517.1 | 1,499.3 | 2,497.7 | 3,628.3
Net investment income (loss) | 527.2 | 509.5 | 1,569.8 | 1,536.4
Total operating revenues | 1,048.3 | 2,013.7 | 4,081.5 | 5,183.9
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Spread | Deposit account fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 2.1 | 2.3 | 6.2 | 7.5
Operating Segments | Principal Global Investors |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 377.0 | 362.8 | 1,108.1 | 1,041.3
Fees and other revenues not within the scope of revenue recognition guidance | 4.8 | 5.1 | 14.2 | 19.8
Total fees and other revenues | 381.8 | 367.9 | 1,122.3 | 1,061.1
Net investment income (loss) | 1.0 | 2.0 | 4.2 | 7.3
Total operating revenues | 382.8 | 369.9 | 1,126.5 | 1,068.4
Operating Segments | Principal Global Investors | Management fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 330.2 | 315.3 | 954.7 | 912.3
Operating Segments | Principal Global Investors | Other fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 46.8 | 47.5 | 153.4 | 129.0
Operating Segments | Principal International |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 111.1 | 114.8 | 322.2 | 345.9
Fees and other revenues not within the scope of revenue recognition guidance | 1.4 | 1.6 | 4.2 | 5.0
Total fees and other revenues | 112.5 | 116.4 | 326.4 | 350.9
Premiums and other considerations | 16.6 | 115.8 | 130.2 | 342.8
Net investment income (loss) | 96.2 | 172.4 | 345.6 | 503.0
Total operating revenues | 225.3 | 404.6 | 802.2 | 1,196.7
Operating Segments | Principal International | Latin America |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 80.7 | 87.0 | 236.5 | 263.7
Operating Segments | Principal International | Asia |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 30.5 | 27.8 | 85.8 | 82.4
Operating Segments | Principal International | Principal International Corporate / Regional Office |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 0.2 | 0.3 | 0.7 | 0.7
Operating Segments | Principal International | Geographical Eliminations |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | (0.3) | (0.3) | (0.8) | (0.9)
Operating Segments | Principal International | Management fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 110.1 | 114.0 | 319.3 | 343.8
Operating Segments | Principal International | Other fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 1.0 | 0.8 | 2.9 | 2.1
Operating Segments | U.S. Insurance Solutions |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 15.9 | 16.6 | 46.9 | 48.4
Total operating revenues | 1,121.4 | 1,192.6 | 3,332.8 | 3,348.0
Operating Segments | U.S. Insurance Solutions | Specialty Benefits insurance |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 3.9 | 3.8 | 11.2 | 11.1
Fees and other revenues not within the scope of revenue recognition guidance | 4.9 | 4.8 | 14.4 | 14.6
Total fees and other revenues | 8.8 | 8.6 | 25.6 | 25.7
Premiums and other considerations | 570.9 | 579.0 | 1,741.8 | 1,706.5
Net investment income (loss) | 38.4 | 42.2 | 116.7 | 125.2
Total operating revenues | 618.1 | 629.8 | 1,884.1 | 1,857.4
Operating Segments | U.S. Insurance Solutions | Specialty Benefits insurance | Administrative service fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 3.9 | 3.8 | 11.2 | 11.1
Operating Segments | U.S. Insurance Solutions | Individual Life insurance |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 12.0 | 12.8 | 35.8 | 37.4
Fees and other revenues not within the scope of revenue recognition guidance | 232.6 | 292.1 | 634.4 | 674.6
Total fees and other revenues | 244.6 | 304.9 | 670.2 | 712.0
Premiums and other considerations | 79.0 | 79.1 | 255.3 | 251.7
Net investment income (loss) | 179.7 | 178.8 | 523.3 | 527.0
Total operating revenues | 503.3 | 562.8 | 1,448.8 | 1,490.7
Operating Segments | U.S. Insurance Solutions | Individual Life insurance | Administrative service fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 5.4 | 6.1 | 16.1 | 18.2
Operating Segments | U.S. Insurance Solutions | Individual Life insurance | Commission income |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 6.6 | 6.7 | 19.7 | 19.2
Operating Segments | Corporate |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 42.4 | 39.5 | 111.2 | 119.0
Fees and other revenues not within the scope of revenue recognition guidance | (75.8) | (75.2) | (221.1) | (223.7)
Total fees and other revenues | (33.4) | (35.7) | (109.9) | (104.7)
Net investment income (loss) | 16.4 | 19.3 | 85.9 | 73.7
Total operating revenues | (17.0) | (16.4) | (24.0) | (31.0)
Operating Segments | Corporate | Other fee revenue |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 13.6 | 12.5 | 38.3 | 32.5
Operating Segments | Corporate | Commission income |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | 78.0 | 82.0 | 231.0 | 236.5
Operating Segments | Corporate | Revenue by type - Eliminations |  |  |  |
Revenues from Contracts with Customers - Disaggregation of Revenues |  |  |  |
Total revenues from contracts with customers | $ (49.2) | $ (55.0) | $ (158.1) | $ (150.0)

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- Definition Amount of fees and commissions related to financial service activities including, but not limited to, investment advisory and asset management services, recordkeeping and reporting services, administrative activities and sales of insurance and related services. + References No definition available. + Details
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- Definition Operating revenues is a measure of revenue for the operating segments. It is derived by adjusting total revenues for net realized capital gains and losses (except periodic settlements and accruals on derivatives not designated as hedging instruments), including their impact on recognition of front-end fee revenues, certain market value adjustments to fee revenues and amortization of hedge accounting book value adjustments for certain discontinued hedges, and revenue from the exited group medical insurance business. Operating revenues also includes operating revenues from real estate properties that qualify for discontinued operations. + References No definition available. + Details
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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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