Derivative Financial Instruments (Details Textual) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Derivative Financial Instruments (Textual) [Abstract]
Notional amount	$ 216	$ 355
Net unrealized losses on cash flow hedges	7
Foreign Exchange Contract | Sell EUR Buy SEK Forward
Derivative Financial Instruments (Textual) [Abstract]
Notional amount	82	140
Foreign Exchange Contract | Sell USD Buy EUR
Derivative Financial Instruments (Textual) [Abstract]
Notional amount	64	85
Foreign Exchange Contract | Sell GBP Buy EUR
Derivative Financial Instruments (Textual) [Abstract]
Notional amount	$ 28	$ 51