Principal Amount Outstanding of Loans Serviced for Third Parties

No definition available.

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Namespace Prefix:	sti_
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- Definition

Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=13989330&loc=d3e107314-111719

+ Details

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Period Type:	instant

- Definition

Amount of transfers of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized among segments.

+ References

No definition available.

+ Details

Name:	us-gaap_GoodwillTransfers
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue from servicing real estate mortgages, credit cards, and other financial assets held by others. Includes premiums received in lieu of regular servicing fees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 13

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13 (d))

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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Goodwill and Intangible Assets - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended				9 Months Ended		3 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013 Consumer Banking and Private Wealth Management [Member]	Sep. 30, 2014 Consumer Banking and Private Wealth Management [Member]	Sep. 30, 2013 Wholesale Banking [Member]	Sep. 30, 2014 Wholesale Banking [Member]	Sep. 30, 2014 Mortgage Servicing Rights, Fair Value [Member]	Mar. 31, 2014 Mortgage Servicing Rights, Fair Value [Member]	Sep. 30, 2013 Mortgage Servicing Rights, Fair Value [Member]	Sep. 30, 2013 Mortgage Servicing Rights, Fair Value [Member]	Dec. 31, 2013 Mortgage Servicing Rights, Fair Value [Member]
Bank Servicing Fees	$ 44,000,000	$ 11,000,000	$ 143,000,000	$ 50,000,000					$ 81,000,000	$ 241,000,000	$ 79,000,000	$ 232,000,000
Qualitative and Quantitative Information, Transferor's Continuing Involvement, Principal Amount Outstanding									135,800,000,000				136,700,000,000
Principal Amount Outstanding of Loans Serviced For Third Parties									109,100,000,000				106,800,000,000
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount						68.00%		13.00%
Goodwill, Transfers				$ 0	$ 300,000,000		$ (300,000,000)