Financial Instruments - Derivatives (Details) € in Millions, ₩ in Millions, ¥ in Millions, ¥ in Millions, £ in Millions, PLN in Millions, MXN in Millions, HUF in Millions, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2016 PLN t	Dec. 31, 2015 PLN t	Sep. 30, 2016 USD ($)	Sep. 30, 2016 HUF	Sep. 30, 2016 JPY (¥)	Sep. 30, 2016 KRW (₩)	Sep. 30, 2016 CNY (¥)	Sep. 30, 2016 EUR (€)	Sep. 30, 2016 GBP (£)	Jul. 20, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 HUF	Dec. 31, 2015 JPY (¥)	Dec. 31, 2015 KRW (₩)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 MXN	Dec. 31, 2015 GBP (£)
Foreign currency | Swedish krona | Maturity December 2016
Derivative [Line Items]
Notional amount of currency derivatives | €								€ 1.1								€ 0.0
Foreign currency | Chinese renminbi | Maturity December 2016
Derivative [Line Items]
Notional amount of currency derivatives | €								5.8								30.5
Foreign currency | Chinese renminbi | Maturity July 2017
Derivative [Line Items]
Notional amount of currency derivatives			$ 15.4								$ 13.8
Foreign currency | Euro | Maturity December 2016
Derivative [Line Items]
Notional amount of currency derivatives	PLN 21.6	PLN 0.0		HUF 0.0	¥ 928.3				£ 1.3			HUF 3,434.5	¥ 487.1					£ 0.0
Foreign currency | Euro | Maturity December 2017
Derivative [Line Items]
Notional amount of currency derivatives			28.4								30.1
Foreign currency | Japanese yen | Maturity December 2016
Derivative [Line Items]
Notional amount of currency derivatives | ₩						₩ 1,222.3								₩ 5,998.9
Foreign currency | Japanese yen | Maturity December 2017
Derivative [Line Items]
Notional amount of currency derivatives			2.7				¥ 92.7				3.0				¥ 92.6
Foreign currency | Korean won | Maturity December 2016
Derivative [Line Items]
Notional amount of currency derivatives					¥ 147.1			€ 4.6					¥ 0.0			€ 2.5
Foreign currency | Korean won | Maturity December 2017
Derivative [Line Items]
Notional amount of currency derivatives			$ 22.3								77.9
Foreign currency | US dollar | Maturity September 2016
Derivative [Line Items]
Notional amount of currency derivatives | MXN																	MXN 469.0
Commodity contracts | Maturity December 2016
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | t	1,495.0	6,273.2
Interest rate swaps
Derivative [Line Items]
Notional amount of currency derivatives										$ 384.0
Interest rate swaps | Maturity September 2020
Derivative [Line Items]
Notional amount of currency derivatives											250.0
Interest rate swaps | Maturity October 2019
Derivative [Line Items]
Notional amount of currency derivatives											$ 134.0