XML 54 R39.htm IDEA: XBRL DOCUMENT v3.22.0.1

Deferred Acquisition Costs (Tables)

12 Months Ended

Dec. 31, 2021

Deferred Acquisition Costs

Deferred Acquisition Costs Rollforward (Table)

​

​	​	​	​	​	​	​	​	​	​	​
​	​	For the year ended December 31,								​
​		2021			2020			2019
​	​	(in millions)								​
Balance at beginning of year	​	$	3,409.7	​	$	3,521.3	​	$	3,693.5	​
Costs deferred during the year	​	​	461.4	​		457.0	​		473.5	​
Amortized to expense during the year (1)	​	​	(285.4)	​		(388.1)	​		(347.0)	​
Adjustment related to unrealized (gains) losses on available-for-sale securities and derivative instruments	​	​	171.8	​		(180.5)	​		(298.7)	​
Balance at end of year	​	$	3,757.5	​	$	3,409.7	​	$	3,521.3	​

(1) Includes adjustments for revisions to EGPs.

X

- Definition

Tabular disclosure of the reconciliation of deferred acquisition costs from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	pfg_ScheduleOfDeferredAcquisitionCostsDisclosureTableTextBlock
Namespace Prefix:	pfg_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DeferredPolicyAcquisitionCostsDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration