Other Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Expenses [Abstract]
Termination Fee Paid	$ 315
Other Transaction Costs	63
Restructuring costs incurred		$ 11	$ 58
Change In Contingent Liability In Business Combination	25
Business Combination, Contingent Consideration, Liability	$ 29	$ 4