Financial Instruments and Commodity Contracts - Foreign Currency Contracts (Details) - Foreign Exchange Contract [Member] € in Millions, MXN in Millions, CAD in Millions, $ in Millions		May. 31, 2016 EUR (€)	Apr. 30, 2016 EUR (€)	Mar. 31, 2016 EUR (€)	Feb. 29, 2016 EUR (€)	Feb. 29, 2016 MXN	Jan. 31, 2016 USD ($)	Jan. 31, 2016 EUR (€)	Jan. 31, 2016 MXN	Dec. 31, 2015 EUR (€)	Nov. 30, 2015 EUR (€)	Oct. 31, 2015 EUR (€)	Oct. 31, 2015 CAD	Jan. 31, 2015 EUR (€)
Euro Member Countries, Euro | Settling in November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly											€ 2			€ 2
Euro Member Countries, Euro | Maturing November 2015 to October 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount	[1]							€ 24				€ 30
Euro Member Countries, Euro | Maturing November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly								3
Euro Member Countries, Euro | Maturing December 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly										€ 3
Euro Member Countries, Euro | Maturing January 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly								€ 4
Canada, Dollars | Maturing November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount | CAD													CAD 25
Canada, Dollars | Maturing June 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount | $							$ 889
Mexican Pesos | Settling in November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly | MXN									MXN 431
Mexican Pesos | Maturing November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount | CAD													CAD 1,270
Subsequent Event [Member] | Euro Member Countries, Euro | Settling in November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly					€ 3
Subsequent Event [Member] | Euro Member Countries, Euro | Maturing February 2016 through October 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly					€ 2
Subsequent Event [Member] | Mexican Pesos | Maturing February 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly | MXN						MXN 458
Scenario, Forecast [Member] | Euro Member Countries, Euro | Settling in November 2015 [Member]
Derivative [Line Items]
Derivative, Notional Amount Expiring Monthly		€ 2	€ 3	€ 4

[1] Forward exchange contracts of €2 million settled in February 2016, €3 million matured in February 2016, €4 million mature in March 2016, €3 million mature in April 2016, and €2 million mature each month from May 2016 through October 2016.