Segment Information (Revenues and Asset Management Revenues) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Segment Reporting Information [Line Items]
Asset management and service fees	$ 4,901	$ 4,391		$ 4,239
Total revenues	70,934	57,033		64,807
PGIM | PGIM | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenues	939	866		777
United States
Segment Reporting Information [Line Items]
Total revenues	45,286	30,803	[1]	38,043	[1]
Japan
Segment Reporting Information [Line Items]
Total revenues	18,852	20,028	[1]	19,771	[1]
Other Countries
Segment Reporting Information [Line Items]
Total revenues	6,796	6,202	[1]	6,993	[1]
Management Service, Base
Segment Reporting Information [Line Items]
Asset management and service fees	4,111	3,615		3,489
Management Service, Incentive
Segment Reporting Information [Line Items]
Asset management and service fees	147	193		169
Financial Service, Other
Segment Reporting Information [Line Items]
Asset management and service fees	$ 643	$ 583		$ 581

[1] Prior period amounts have been updated to conform to current period presentation