Subsequent Events (Details) - Subsequent Event [Member]	Nov. 01, 2016 USD ($)
Subsequent Event [Line Items]
Proceeds from Divestiture of Businesses, Net of Cash Divested	$ 440,000,000
Sul Subsidiary [Member]
Subsequent Event [Line Items]
Investment In Affiliate Ownership Percentage Sold	100.00%

This element represents the cash inflow during the period from the sale of a component of the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Name:	us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration