v3.8.0.1

Short-Term and Long-Term Debt (Short-Term Debt) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Short Term Debt [Line Items]
Short-term debt	$ 1,380	$ 1,133
Weighted average interest rate on outstanding short-term debt	0.99%	0.43%
Commercial paper
Short Term Debt [Line Items]
Short-term debt	$ 550	$ 590
Weighted average maturity of outstanding commercial paper, in days	22 days	21 days
Current portion of long-term debt
Short Term Debt [Line Items]
Short-term debt	$ 830	$ 543
Borrowings due overnight | Commercial paper
Short Term Debt [Line Items]
Short-term debt	277	292
Daily average outstanding | Commercial paper
Short Term Debt [Line Items]
Short-term debt	1,110	1,020
Prudential Financial
Short Term Debt [Line Items]
Short-term debt	880	535
Prudential Financial | Commercial paper
Short Term Debt [Line Items]
Short-term debt	$ 50	$ 65
Weighted average interest rate on outstanding short-term debt	1.15%	0.60%
Prudential Financial | Current portion of long-term debt
Short Term Debt [Line Items]
Short-term debt	$ 830	$ 470
Prudential Funding, LLC | Commercial paper
Short Term Debt [Line Items]
Short-term debt	$ 500	$ 525

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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X

- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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X

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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