Derivative Instruments and Hedging Activities (Foreign Currency Derivatives) (Details) In Millions, unless otherwise specified		12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2013 Chilean Unidad De Fomento CLF Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 Chilean Unidad De Fomento CLF Foreign Exchange Option and Forward CLF		Dec. 31, 2013 Chilean Peso CLP Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 Chilean Peso CLP Foreign Exchange Option and Forward CLP		Dec. 31, 2013 Brazilian Real BRL Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 Brazilian Real BRL Foreign Exchange Option and Forward BRL		Dec. 31, 2013 Euro EUR Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 Euro EUR Foreign Exchange Option and Forward EUR (€)		Dec. 31, 2013 Colombian Peso COP Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 Colombian Peso COP Foreign Exchange Option and Forward COP		Dec. 31, 2013 Argentine Peso ARS Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 Argentine Peso ARS Foreign Exchange Option and Forward ARS		Dec. 31, 2013 Argentine Peso ARS Embedded Derivative Financial Instruments USD ($)		Dec. 31, 2013 Argentine Peso ARS Embedded Derivative Financial Instruments ARS		Dec. 31, 2013 British Pound GBP Foreign Exchange Option and Forward USD ($)		Dec. 31, 2013 British Pound GBP Foreign Exchange Option and Forward GBP (£)		Dec. 31, 2013 Kazakhstani Tenge KZT Embedded Derivative Financial Instruments USD ($)		Dec. 31, 2013 Kazakhstani Tenge KZT Embedded Derivative Financial Instruments KZT
Derivative [Line Items]
Derivative, notional amount	$ 3,600	$ 248		6	[1]	$ 115		60,521	[1]	$ 78		182	[1]	$ 73		€ 53	[1]	$ 69		133,860	[1]	$ 7		43	[1]	$ 139		905	[1]	$ 57		£ 35	[1]	$ 5		816	[1]
Derivative average remaining maturity (less than 1 year)						<1	[2]	<1	[2]	<1	[2]	<1	[2]	<1	[2]	<1	[2]	<1	[2]	<1	[2]	<1	[2]	<1	[2]					<1	[2]	<1	[2]
Derivative average remaining maturity (less than 1 year for some Foreign Currency Options)		1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	1 year	[2]	10 years	[2]	10 years	[2]	1 year	[2]	1 year	[2]	4 years	[2]	4 years	[2]

[1] Represents contractual notionals. The notionals for options have not been probability adjusted, which generally would decrease them.

[2] Represents the remaining tenor of our foreign currency derivatives weighted by the corresponding notional. These options and forwards and these embedded derivatives range in maturity through 2017 and 2025, respectively.