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Legal Proceedings Additional Information (Details) $ in Millions | 1 Months Ended |
--- | --- | ---
Mar. 31, 2015 plaintiff claim | Mar. 30, 2018 USD ($)
Loss Contingencies [Line Items] |  |
Number of plaintiffs | plaintiff | 2 |
New claims filed, number | 3 |
Loss contingency, pending claims, number | 2 |
Maximum |  |
Loss Contingencies [Line Items] |  |
Loss contingency, range of possible loss, maximum | $ |  | $ 189

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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349 + Details
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