Related Party Transactions (Affiliated Asset Transfers) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Prudential Insurance March 14 Purchase
Related Party [Line Items]
Fair Value	$ 13
Book Value	13
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	0
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	0
Prudential Financial September 14 Transfer In
Related Party [Line Items]
Fair Value	81
Book Value	77
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	3
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	0
Prudential Financial September 14 Transfer Out
Related Party [Line Items]
Fair Value	142
Book Value	136
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	(4)
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	0
PURC Financial September 14 Transfer Out
Related Party [Line Items]
Fair Value	178
Book Value	172
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	0
Realized Investment Gain/(Loss), Net	6
Derivative Gain/(Loss)	(8)
PALAC October 14 Purchase
Related Party [Line Items]
Fair Value	10
Book Value	9
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	0
Realized Investment Gain/(Loss), Net	(1)
Derivative Gain/(Loss)	0
Prudential Insurance December 14 Purchase
Related Party [Line Items]
Fair Value	122
Book Value	102
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	(13)
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	0
PURC December 14 Purchase
Related Party [Line Items]
Fair Value	3
Book Value	3
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	0
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	0
Prudential Insurance March 15 Purchase
Related Party [Line Items]
Fair Value	92
Book Value	74
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	(12)
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	0
Prudential Insurance June 15 Purchase
Related Party [Line Items]
Fair Value	11
Book Value	10
Additional Paid-in Capital, Net of Tax Increase/(Decrease)	(1)
Realized Investment Gain/(Loss), Net	0
Derivative Gain/(Loss)	$ 0