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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Parenthetical) - $ / shares | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
PREFERRED SHARES |  |  |
Common Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01 | $ 0.01
Series K Preferred Stock [Member] |  |  |
PREFERRED SHARES |  |  |
Preferred Stock Preference Units Dividend Rate Percentage | 8.29% | 8.29% | 8.29%

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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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