Total Equity and Other Comprehensive Income (Narrative) (Details) - TARP Warrant [Member] - $ / shares shares in Millions	Mar. 31, 2016	Dec. 31, 2015
Number of warrants or rights outstanding	13.4	13.4
Exercise price per share of warrants or rights outstanding	$ 67.33	$ 67.33

Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant