XML 21 R10.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Condensed Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical) - $ / shares |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 16, 2017 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Statement of Stockholders' Equity [Abstract] |  |  |  |  |
Cash dividends declared per common share (in $ per share) | $ 0.45 | $ 0.45 | $ 0.45 | $ 1.35 | $ 1.35
Cash dividends declared per preferred share (in $ per share) |  | $ 1.81 | $ 0 | $ 5.4375 | $ 0

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of preferred stock outstanding. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration