Derivative Instruments and Hedging Activities - Part 1 (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 82	$ 56
Interest Rate Contract [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	501	358
Interest Rate Contract [Member] | Libor and Euribor [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	3,324
Cross currency derivatives [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	26	43
Commodity Contract [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	38	33
Derivative Liability, Fair Value, Gross Liability	647	$ 490
Unidad de Fomento (funds code) | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	196
Unidad de Fomento (funds code) | Cross currency derivatives [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	379
Argentina, Pesos | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	158
Other unspecified currency [Domain] | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	$ 1,227