Financial Instruments - Summarization for Foreign Currency Forward Purchase and Sale Contracts (Details) - Jun. 30, 2016 - Foreign Exchange Forward Contracts € in Millions, ¥ in Millions, £ in Millions, ZAR in Millions, MXN in Millions, CAD in Millions, AUD in Millions, $ in Millions	EUR (€)	JPY (¥)	CAD	GBP (£)	USD ($)	ZAR	MXN	AUD
Australia, Dollars | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | AUD								AUD 2
British, Pounds | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | £				£ 20
British, Pounds | Short
Derivative [Line Items]
Notional Amount in Foreign Currency | £				£ 39
Canada, Dollars | Short
Derivative [Line Items]
Notional Amount in Foreign Currency | CAD			CAD 2
Japan, Yen | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | ¥		¥ 240
Japan, Yen | Short
Derivative [Line Items]
Notional Amount in Foreign Currency | ¥		¥ 401
European, Euro | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | €	€ 28
European, Euro | Short
Derivative [Line Items]
Notional Amount in Foreign Currency | €	€ 91
Mexico, Pesos | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | MXN							MXN 320
South Africa, Rand | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | ZAR						ZAR 141
South Africa, Rand | Short
Derivative [Line Items]
Notional Amount in Foreign Currency | ZAR						ZAR 185
U.S., Dollars | Long
Derivative [Line Items]
Notional Amount in Foreign Currency | $					$ 164
U.S., Dollars | Short
Derivative [Line Items]
Notional Amount in Foreign Currency | $					$ 77