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Investment Securities (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Investment Securities (Details) [Abstract]
Other-than-temporary impairments recognized during the period			$ 0		$ 0
Gain on sale of securities	$ 0	$ 41	0	$ 80
Losses on sale of securities	$ 0	$ 0	$ 0	$ 0

X

- Definition

Investment Securities Details.

+ References

No definition available.

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- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 320



-SubTopic 10



-Section 50



-Paragraph 9



-Subparagraph (a)



-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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- Definition

This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 320



-SubTopic 10



-Section 50



-Paragraph 9



-Subparagraph (a)



-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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- Definition

This element represents the amount of loss recognized for other than temporary impairments (OTTI) of investments in debt and equity securities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 320



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SAB TOPIC 5.M)



-URI http://asc.fasb.org/extlink&oid=27011274&loc=d3e87990-122713

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