Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Short-Term and Long-Term Debt (Short-Term Debt) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2020	Dec. 31, 2020
Short-term Debt [Line Items]
Short-term debt	$ 867		$ 925
Weighted average interest rate on outstanding short-term debt	0.07%		0.11%
Commercial paper
Short-term Debt [Line Items]
Short-term debt	$ 396		$ 380
Weighted average maturity of outstanding commercial paper, in days	21 days	18 days
Long-term debt
Short-term Debt [Line Items]
Long-term Debt, Current Maturities	$ 712		1,027
Short-term Debt
Short-term Debt [Line Items]
Long-term Debt, Current Maturities	1,117		1,425
Borrowings due overnight \| Commercial paper
Short-term Debt [Line Items]
Short-term debt	258		75
Daily average outstanding \| Commercial paper
Short-term Debt [Line Items]
Short-term debt	1,424		1,602
Prudential Financial
Short-term Debt [Line Items]
Short-term debt	425		424
Prudential Financial \| Commercial paper
Short-term Debt [Line Items]
Short-term debt	25		25
Prudential Funding, LLC \| Commercial paper
Short-term Debt [Line Items]
Short-term debt	371		355
Mortgages
Short-term Debt [Line Items]
Long-term Debt, Current Maturities	62		128
Line of Credit
Short-term Debt [Line Items]
Short-term debt	9		18
Long-term Debt, Current Maturities	9		18
Senior notes \| Long-term debt
Short-term Debt [Line Items]
Long-term Debt, Current Maturities	400		399
Surplus notes subject to set-off arrangements
Short-term Debt [Line Items]
Long-term Debt, Current Maturities	250		500
Assets Under Set-Off Arrangements
Short-term Debt [Line Items]
Short-term debt	$ 250		$ 500