Long-Term Borrowings - Unsecured Long-Term Borrowings (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Fixed-rate obligations	$ 126,879	$ 122,893
Floating-rate obligations	63,707	52,529
Total	190,586	175,422
U.S. Dollar [Member]
Debt Instrument [Line Items]
Fixed-rate obligations	93,681	92,190
Floating-rate obligations	36,386	33,543
Total	130,067	125,733
Non-U.S. Dollar [Member]
Debt Instrument [Line Items]
Fixed-rate obligations	33,198	30,703
Floating-rate obligations	27,321	18,986
Total	$ 60,519	$ 49,689

The portion of the carrying amount of long-term unsecured borrowings outstanding as of the balance-sheet date, excluding current maturities, which accrues interest at a set, unchanging rate.

No definition available.

+ Details

Name:	gs_UnsecuredFixedRateLongTermDebt
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The portion of the carrying amount of long-term unsecured borrowings outstanding as of the balance-sheet date, excluding current maturities, which accrues interest at a rate subject to change from time to time.

+ References

No definition available.

+ Details

Name:	gs_UnsecuredVariableRateLongTermDebt
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Balance Type:	na
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ 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 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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