Financial Instruments and Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Derivatives

The following table summarizes the notional amounts, related rates and remaining terms of the interest rate swap agreement active at December 31 in millions:

	Notional Amount				Average Fixed Rate				Remaining Term at
	2014		2013		2014		2013		December 31, 2014
NACoal	$	100.0	$	100.0	1.4	%	1.4	%	extending to May 2018

The following table summarizes the notional amounts, related rates and remaining terms of interest rate swap agreements active at December 31 in millions:

	Notional Amount				Average Fixed Rate				Remaining Term at
	2014		2013		2014		2013		December 31, 2014
HBB	$	20.0	$	20.0	1.4	%	1.4	%	extending to January 2020

Schedule of the Fair Value of Derivative Instruments Recorded in the Consolidated Balance Sheets

The following table summarizes the fair value of derivative instruments at December 31 as recorded in the Consolidated Balance Sheets:

	Asset Derivatives					Liability Derivatives
	Balance sheet location	2014		2013		Balance sheet location	2014		2013
Derivatives designated as hedging instruments
Interest rate swap agreements
Current	Prepaid expenses and other	$	39	$	128	Other current liabilities	$	121	$	—
Long-term	Other non-current assets	142		809		Other long-term liabilities	291		—
Foreign currency exchange contracts
Current	Prepaid expenses and other	292		83		Other current liabilities	—		—
Long-term	Other non-current assets	—		—		Other long-term liabilities	—		—
Total derivatives designated as hedging instruments		$	473	$	1,020		$	412	$	—
Derivatives not designated as hedging instruments
Foreign currency exchange contracts
Current	Prepaid expenses and other	$	—	$	—	Prepaid expenses and other	$	—	$	14
Total derivatives not designated as hedging instruments		$	—	$	—		$	—	$	14
Total derivatives		$	473	$	1,020		$	412	$	14

Schedule of the Pre-Tax Impact of Derivative Instruments Recorded in the Consolidated Statement of Operations

The following table summarizes the pre-tax impact of derivative instruments for each year ended December 31 as recorded in the Consolidated Statements of Operations:

Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in AOCI on Derivative (Effective Portion)								Location of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)									Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative  (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	2014			2013		2012				2014			2013			2012				2014		2013		2012
Interest rate swap agreements	$	(2,664	)	$	933	$	(138	)	Interest expense	$	(1,495	)	$	(460	)	$	(1,207	)	N/A	$	—	$	—	$	—
Foreign currency exchange contracts	308			354		(282		)	Cost of sales	108			213			87			N/A	—		—		—
Total	$	(2,356	)	$	1,287	$	(420	)		$	(1,387	)	$	(247	)	$	(1,120	)		$	—	$	—	$	—

		Amount of Gain or (Loss) Recognized in Income on Derivative
Derivatives Not Designated as Hedging Instruments	Location of Gain or (Loss) Recognized in Income on Derivative	2014		2013			2012
Foreign currency exchange contracts	Cost of sales or Other	$	25	$	(14	)	$	(162	)
Total		$	25	$	(14	)	$	(162	)