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Schedule II - Condensed Financial Information of Registrant (Parent Only) - Statements of Financial Position - Parenthetical (Details) - $ / shares	Dec. 31, 2024	Dec. 31, 2023
Condensed Financial Statements, Captions [Line Items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	2,500,000,000	2,500,000,000
Common stock, issued (in shares)	494,734,908	492,279,405
Common stock, outstanding (in shares)	226,225,161	236,438,294
Treasury stock (in shares)	268,509,747	255,841,111
Principal Financial Group, Inc. Parent Only | Legal Entities
Condensed Financial Statements, Captions [Line Items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	2,500,000,000	2,500,000,000
Common stock, issued (in shares)	494,734,908	492,279,405
Common stock, outstanding (in shares)	226,225,161	236,438,294
Treasury stock (in shares)	268,509,747	255,841,111

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.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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