Derivatives and Hedging Activities (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income	$ 0	$ 0
Net hedge ineffectiveness	0	0	$ 0
Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income	0	10,000,000	0
Net hedge ineffectiveness	$ 1,000,000	$ 0	$ 0