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Subsequent Events (Details) | Jan. 22, 2018 USD ($) employees $ / shares shares | Dec. 31, 2017 $ / shares | Dec. 31, 2016 $ / shares
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Par Value, in dollars per share |  | $ 100 |
Common stock, par value (in dollars per share) |  | $ 0.1 | $ 0.1
Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Proceeds from issuance of equity | $ | $ 2,500,000,000 |  |
Par Value, in dollars per share | $ 100 |  |
Amount of private placement shares | shares | 30,120,482 |  |
Common stock, par value (in dollars per share) | $ 0.10 |  |
Amount of private placement | $ | $ 850,000,000 |  |
Liquidation preference value | $ | $ 1,000 |  |
Conversion price (in dollars per share) | $ 27.42 |  |
Conversion threshold of Preferred Stock (in shares) | shares | 323,200 |  |
Common stock share cap (in shares) | shares | 58,964,222 |  |
RWG number of board members | employees | 2 |  |
Series A Convertible Preferred Stock | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Preferred stock shares issued | shares | 1,616,000 |  |
Amount of preferred stock investment | $ | $ 1,620,000,000 |  |
FE | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
RWG number of board members | employees | 3 |  |

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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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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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