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Shareholders' Equity - Redomestication Narrative (Details) - USD ($) $ / shares in Units, $ in Billions | Dec. 31, 2015 | Dec. 31, 2014
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Equity [Abstract] |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Distributable reserves available amount | $ 2.1 | $ 4.0

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- Definition Represents the amount of distributable reserves maintained by the entity. + References No definition available. + Details
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Period Type: | instant

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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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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Balance Type: | na
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- References No definition available. + Details
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