Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
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Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

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Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 815
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Nominal volume used to calculate payments on a derivative instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Financial Instruments Energy Narrative (Details) bbl in Millions, $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) bbl	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) bbl
Commodity contracts \| Energy Segment [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Number of barrels \| bbl					2.5
2-1-1 crack spreads [Member] \| Energy Segment [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Number of barrels \| bbl			2.2
Heating oil crack spreads [Member] \| Energy Segment [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Number of barrels \| bbl			0.2
Price and basis swap [Member] \| Energy Segment [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Number of barrels \| bbl			0.3
Interest rate swap contracts
Derivatives, Fair Value [Line Items]
Notional value of interest rate swap agreements					$ 16,000.0
Cash Flow Hedging [Member] \| Interest rate swap contracts \| Energy Segment [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional value of interest rate swap agreements	$ 62.5		$ 62.5
Interest rate swap losses relcassed from AOCI to interest expense	(1.0)	$ (1.0)	(1.0)	$ (1.0)
Accrued Expenses and Other Liabilities [Member] \| Commodity contracts \| Energy Segment [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset	5.0		5.0		$ 45.0
Other Income (Loss) Not Specified [Member] \| Commodity contracts \| Energy Segment [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Realized gain or loss on derivatives	(2.0)	$ 3.0	(4.0)	$ (60.0)
Term Loan [Member] \| Debt Facility [Member] \| Energy Segment [Member]
Derivatives, Fair Value [Line Items]
Portion of debt that is hedged	$ 125.0		$ 125.0