Equity (Statutory Financial Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Prudential Insurance
Statutory Accounting Practices [Line Items]
Statutory net income (loss)(1)	$ (169)	$ 1,324	$ (217)
Statutory capital and surplus	11,483	10,695	9,948
PALAC
Statutory Accounting Practices [Line Items]
Statutory net income (loss)(1)	(2,052)	(852)	3,911
Statutory capital and surplus	$ 4,748	$ 6,396	$ 8,059