v3.8.0.1
Schedule II - Condensed Financial Information of Registrant (Narratives) (Details) - USD ($)
3 Months Ended 12 Months Ended
Jan. 02, 2015
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Schedule II Narrative [Line Items]              
Increase (Decrease) In Interest Expense, Derivative Instruments       $ 1,327,000,000 $ 1,320,000,000 $ 1,306,000,000  
Class B Stock repurchase adjustment         119,000,000 0  
Prudential Financial              
Schedule II Narrative [Line Items]              
Increase (Decrease) In Interest Expense, Derivative Instruments       1,057,000,000 1,106,000,000 1,080,000,000  
Derivatives | Prudential Financial              
Schedule II Narrative [Line Items]              
Increase (Decrease) In Interest Expense, Derivative Instruments       1,000,000 2,000,000 3,000,000  
Commercial Paper | Prudential Financial              
Schedule II Narrative [Line Items]              
Guarantee obligation       500,000,000      
Investee Debt | Prudential Financial              
Schedule II Narrative [Line Items]              
Guarantee obligation       $ 3,900,000,000      
Commitments to Extend Credit | Prudential Financial              
Schedule II Narrative [Line Items]              
Guarantee obligation             $ 500,000,000
Held In Treasury | Common Class B Stock              
Schedule II Narrative [Line Items]              
Class B Stock repurchase adjustment $ 651,000,000   $ 770,000,000     (651,000,000)  
Held In Treasury | Common Class B Stock | Prudential Financial              
Schedule II Narrative [Line Items]              
Class B Stock repurchase adjustment 651,000,000 $ 770,000,000          
Retained Earnings              
Schedule II Narrative [Line Items]              
Class B Stock repurchase adjustment (484,000,000)   $ (119,000,000)   $ 119,000,000 484,000,000  
Retained Earnings | Prudential Financial              
Schedule II Narrative [Line Items]              
Class B Stock repurchase adjustment (484,000,000) $ (119,000,000)          
Additional Paid-in Capital              
Schedule II Narrative [Line Items]              
Class B Stock repurchase adjustment (167,000,000)         $ 167,000,000  
Additional Paid-in Capital | Prudential Financial              
Schedule II Narrative [Line Items]              
Class B Stock repurchase adjustment $ (167,000,000)