Condensed Consolidated Statements of Operations - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Premiums and other considerations		$ 1,486.5	$ 1,230.5	$ 3,740.1	$ 3,335.3
Fees and other revenues		1,015.7	1,251.8	3,178.3	3,711.0
Net investment income (loss)		908.2	1,093.4	2,842.8	3,167.0
Net realized capital gains (losses)	[1]	(55.7)	(152.0)	(394.1)	(41.7)
Net realized capital gains (losses) on funds withheld assets		8.5		697.5
Change in fair value of funds withheld embedded derivative		1,237.7		4,305.0
Total revenues		4,600.9	3,423.7	14,369.6	10,171.6
Expenses
Benefits, claims and settlement expenses		1,734.8	1,770.9	4,473.3	4,958.4
Dividends to policyholders		24.5	28.2	72.1	75.3
Operating expenses		1,111.5	1,196.5	3,769.0	3,663.3
Total expenses		2,870.8	2,995.6	8,314.4	8,697.0
Income (loss) before income taxes		1,730.1	428.1	6,055.2	1,474.6
Income taxes (benefits)		348.7	63.8	1,218.5	222.4
Net income (loss)		1,381.4	364.3	4,836.7	1,252.2
Net income (loss) attributable to noncontrolling interest		(4.1)	4.4	15.6	13.4
Net income (loss) attributable to Principal Financial Group, Inc.		$ 1,385.5	$ 359.9	$ 4,821.1	$ 1,238.8
Earnings per common share
Basic earnings per common share (in dollars per share)		$ 5.59	$ 1.34	$ 19.03	$ 4.58
Diluted earnings per common share (in dollars per share)		$ 5.50	$ 1.32	$ 18.74	$ 4.51

[1] Includes realized and unrealized gains (losses). See Note 3, Investments, for further details.