Variable Interest Entities and Securitization Activities (Consolidated VIEs) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity
VIE assets	$ 3,313	$ 1,801
VIE liabilities	1,329	463
OSF
Variable Interest Entity
VIE assets	361	378
VIE liabilities	1	3
MABS
Variable Interest Entity
VIE assets	234	249
VIE liabilities	197	210
Other
Variable Interest Entity
VIE assets	2,718	1,174
VIE liabilities	$ 1,131	$ 250

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5710-111685

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- Definition

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

+ References

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- 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.

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