Environmental and Legal Contingencies (Details 4) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 Antitrust Case [Member]	Jul. 31, 2013 MOFCOM [Member] Preliminary [Member] Countervailing Duty [Member] CHINA	Jul. 31, 2013 MOFCOM [Member] Final [Member] CHINA	Jul. 31, 2013 MOFCOM [Member] Final [Member] Antidumping Duty [Member] CHINA	Jul. 31, 2013 MOFCOM [Member] Final [Member] Countervailing Duty [Member] CHINA	Mar. 05, 2014 US Trade Case - GOES [Member] Preliminary [Member] Countervailing Duty [Member] CHINA	Mar. 19, 2014 US Trade Case - NOES [Member] Preliminary [Member] Countervailing Duty [Member] CHINA	Mar. 19, 2014 US Trade Case - NOES [Member] Preliminary [Member] Countervailing Duty [Member] Leicong Industrial Company [Member] TAIWAN, PROVINCE OF CHINA	Mar. 19, 2014 US Trade Case - NOES [Member] Preliminary [Member] Countervailing Duty [Member] All Other Producers [Member] TAIWAN, PROVINCE OF CHINA	May 05, 2014 Minimum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] CHINA	May 05, 2014 Minimum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] CZECH REPUBLIC	May 05, 2014 Minimum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] SOVIET UNION	May 05, 2014 Minimum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] KOREA, REPUBLIC OF	May 16, 2014 Minimum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] CHINA	May 16, 2014 Minimum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] GERMANY	May 16, 2014 Minimum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] JAPAN	May 16, 2014 Minimum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] KOREA, REPUBLIC OF	May 16, 2014 Minimum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] SWEDEN	May 16, 2014 Minimum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] TAIWAN, PROVINCE OF CHINA	May 05, 2014 Maximum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] CHINA	May 05, 2014 Maximum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] CZECH REPUBLIC	May 05, 2014 Maximum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] SOVIET UNION	May 05, 2014 Maximum [Member] US Trade Case - GOES [Member] Preliminary [Member] Antidumping Duty [Member] KOREA, REPUBLIC OF	May 16, 2014 Maximum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] CHINA	May 16, 2014 Maximum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] GERMANY	May 16, 2014 Maximum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] JAPAN	May 16, 2014 Maximum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] KOREA, REPUBLIC OF	May 16, 2014 Maximum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] SWEDEN	May 16, 2014 Maximum [Member] US Trade Case - NOES [Member] Preliminary [Member] Antidumping Duty [Member] TAIWAN, PROVINCE OF CHINA	Jul. 17, 2014 Subsequent Event [Member] Minimum [Member] US Trade Case - GOES [Member] Final [Member] Antidumping Duty [Member] GERMANY	Jul. 17, 2014 Subsequent Event [Member] Minimum [Member] US Trade Case - GOES [Member] Final [Member] Antidumping Duty [Member] JAPAN	Jul. 17, 2014 Subsequent Event [Member] Minimum [Member] US Trade Case - GOES [Member] Final [Member] Antidumping Duty [Member] POLAND	Jul. 17, 2014 Subsequent Event [Member] Maximum [Member] US Trade Case - GOES [Member] Final [Member] Antidumping Duty [Member] GERMANY	Jul. 17, 2014 Subsequent Event [Member] Maximum [Member] US Trade Case - GOES [Member] Final [Member] Antidumping Duty [Member] JAPAN	Jul. 17, 2014 Subsequent Event [Member] Maximum [Member] US Trade Case - GOES [Member] Final [Member] Antidumping Duty [Member] POLAND
Loss Contingencies [Line Items]
Payment in Litigation Settlement	$ 5.8
Duty Rate		11.70%	11.20%	7.80%	3.40%	49.15%	125.83%	12.82%	6.41%	159.21%	10.35%	68.98%	5.34%	407.52%	86.29%	135.59%	6.91%	98.46%	28.14%	159.21%	11.45%	119.88%	5.34%	407.52%	98.84%	204.79%	6.91%	126.72%	52.23%	133.70%	93.36%	78.10%	241.91%	172.30%	99.51%