Condensed Consolidated Statements of Financial Position - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Assets
Fixed maturities, available-for-sale	$ 65,396.9	$ 62,889.9
Fixed maturities, trading	787.9	760.7
Equity securities (2023 and 2022 include $761.6 million and $740.0 million related to consolidated variable interest entities)	1,733.3	1,708.6
Mortgage loans (2023 and 2022 include $1,166.7 million and $1,179.7 million related to consolidated variable interest entities)	20,603.5	20,629.8
Real estate (2023 and 2022 include $710.3 million and $649.0 million related to consolidated variable interest entities)	2,300.1	2,239.7
Policy loans	788.0	784.7
Other investments (2023 and 2022 include $396.6 million and $375.9 million related to consolidated variable interest entities)	6,421.5	6,122.0
Total investments	98,031.2	95,135.4
Cash and cash equivalents (2023 and 2022 include $44.5 million and $32.4 million related to consolidated variable interest entities)	4,640.9	4,848.0
Accrued investment income	797.7	742.1
Reinsurance recoverable and deposit receivable	20,881.5	21,154.0
Premiums due and other receivables	3,837.6	3,933.3
Deferred acquisition costs	3,948.3	3,948.0
Market risk benefit asset	107.3	109.2
Property and equipment	986.2	996.1
Goodwill	1,636.1	1,598.2
Other intangibles	1,535.5	1,533.3
Separate account assets (2023 and 2022 include $36,276.3 million and $34,193.8 million related to consolidated variable interest entities)	162,000.8	155,375.1
Other assets	1,005.1	1,205.6
Total assets	299,408.2	290,578.3
Liabilities
Contractholder funds (2023 and 2022 include $329.2 million and $334.0 million related to consolidated variable interest entities)	42,958.0	42,825.3
Future policy benefits and claims	44,699.9	43,025.3
Market risk benefit liability	194.4	207.4
Other policyholder funds	930.9	911.5
Short-term debt	24.2	80.7
Long-term debt	4,688.6	3,997.0
Income taxes currently payable	24.6	19.2
Deferred income taxes	1,417.1	1,324.2
Separate account liabilities (2023 and 2022 include $36,276.3 million and $34,193.8 million related to consolidated variable interest entities)	162,000.8	155,375.1
Funds withheld payable	20,524.4	20,436.1
Other liabilities (2023 and 2022 include $101.2 million and $86.8 million related to consolidated variable interest entities)	11,411.8	12,096.7
Total liabilities	288,874.7	280,298.5
Redeemable noncontrolling interest (2023 and 2022 include $250.9 million and $235.3 million related to consolidated variable interest entities)	272.7	262.0
Stockholders' equity
Common stock, par value $0.01 per share; 2,500.0 million shares authorized; 491.5 million and 489.8 million shares issued as of 2023 and 2022; 243.1 million and 243.5 million shares outstanding as of 2023 and 2022	4.9	4.9
Additional paid-in capital	10,790.9	10,740.4
Retained earnings	16,398.8	16,697.3
Accumulated other comprehensive income (loss)	(6,201.3)	(6,879.0)
Treasury stock, at cost (248.4 million and 246.3 million shares as of 2023 and 2022)	(10,775.4)	(10,586.9)
Total stockholders' equity attributable to Principal Financial Group, Inc.	10,217.9	9,976.7
Noncontrolling interest	42.9	41.1
Total stockholders' equity	10,260.8	10,017.8
Total liabilities and stockholders' equity	$ 299,408.2	$ 290,578.3