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Segment Information (Reconciliation of Select Financial Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 16,952	$ 13,464
Total Assets	907,280		$ 940,722
Operating Segments
Segment Reporting Information [Line Items]
Revenues	14,215	12,808
Operating Segments | Total PGIM division | PGIM
Segment Reporting Information [Line Items]
Revenues	1,314	778
Total Assets	47,460		48,680
Operating Segments | Total International Insurance division | International Insurance
Segment Reporting Information [Line Items]
Revenues	5,931	5,636
Total Assets	219,600		231,128
Operating Segments | Total Corporate and Other | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	(119)	(205)
Total Assets	23,786		25,124
Operating Segments | Total Closed Block division | Closed Block division
Segment Reporting Information [Line Items]
Total Assets	59,490		62,089
Operating Segments | U.S. Businesses Division | Retirement
Segment Reporting Information [Line Items]
Revenues	2,591	2,437
Total Assets	208,679		213,726
Operating Segments | U.S. Businesses Division | Group Insurance
Segment Reporting Information [Line Items]
Revenues	1,556	1,424
Total Assets	43,685		45,601
Operating Segments | U.S. Businesses Division | Individual Annuities
Segment Reporting Information [Line Items]
Revenues	1,199	1,148
Total Assets	192,342		200,718
Operating Segments | U.S. Businesses Division | Individual Life
Segment Reporting Information [Line Items]
Revenues	1,635	1,530
Total Assets	109,541		110,953
Operating Segments | U.S. Businesses Division | Assurance IQ
Segment Reporting Information [Line Items]
Revenues	108	60
Total Assets	2,697		2,703
Segment Reconciling Items | Realized investment gains (losses), net, and related adjustments
Segment Reporting Information [Line Items]
Revenues	1,004	(364)
Segment Reconciling Items | Charges related to realized investment gains (losses), net
Segment Reporting Information [Line Items]
Revenues	(76)	(61)
Segment Reconciling Items | Market experience updates
Segment Reporting Information [Line Items]
Revenues	101	(334)
Segment Reconciling Items | Segment Reconciling Items, Other Adjustments
Segment Reporting Information [Line Items]
Revenues	0	58
Segment Reconciling Items | Segment Reconciling Items, Operating Joint Ventures And Noncontrolling Interests
Segment Reporting Information [Line Items]
Revenues	(28)	(12)
Segment Reconciling Items | Closed Block division
Segment Reporting Information [Line Items]
Revenues	1,365	677
Segment Reconciling Items | Other Divested and Run-off businesses
Segment Reporting Information [Line Items]
Revenues	371	692
Intersegment Eliminations | Total PGIM division | PGIM
Segment Reporting Information [Line Items]
Revenues	223	217
U.S. Businesses | Operating Segments
Segment Reporting Information [Line Items]
Revenues	7,089	$ 6,599
Total Assets	$ 556,944		$ 573,701

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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