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Short-Term and Long-Term Debt (Short-Term Debt) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Short Term Debt [Line Items]    
Short-term debt $ 618 $ 775
Less: assets under set-off arrangements $ 10,370 $ 11,790
Weighted average interest rate on outstanding short-term debt 5.50% 4.69%
Surplus notes subject to set-off arrangements    
Short Term Debt [Line Items]    
Short-term Debt $ 2,000 $ 500
Commercial paper    
Short Term Debt [Line Items]    
Weighted average maturity of outstanding commercial paper, in days 49 days 98 days
Short-term Debt $ 535 $ 438
Senior notes    
Short Term Debt [Line Items]    
Short-term Debt 0 173
Current portion of long-term debt    
Short Term Debt [Line Items]    
Short-term Debt 2,083 828
Short-term Debt    
Short Term Debt [Line Items]    
Less: assets under set-off arrangements 2,000 500
Short-term Debt 2,618 1,275
Borrowings due overnight | Commercial paper    
Short Term Debt [Line Items]    
Short-term debt 110 130
Daily average outstanding | Commercial paper    
Short Term Debt [Line Items]    
Short-term debt 1,334 1,312
Prudential Financial    
Short Term Debt [Line Items]    
Short-term debt 25 25
Prudential Financial | Commercial paper    
Short Term Debt [Line Items]    
Short-term debt $ 25 $ 25
Weighted average interest rate on outstanding short-term debt 5.35% 4.35%
Short-term Debt $ 25 $ 25
Prudential Financial | Current portion of long-term debt    
Short Term Debt [Line Items]    
Short-term debt 0 0
Prudential Funding, LLC | Commercial paper    
Short Term Debt [Line Items]    
Short-term Debt 510 413
Mortgages    
Short Term Debt [Line Items]    
Short-term Debt 83 155
Line of Credit    
Short Term Debt [Line Items]    
Other Short-term Borrowings $ 0 $ 9