Fair Value Measurements (Contingent Consideration) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Contingent Consideration, at Fair Value	$ 59
Valuation Technique	Discounted cash flow
Unobservable Input	Probability of occurrence
Minimum [Member]
Probability of Occurrence	85.00%
Maximum [Member]
Probability of Occurrence	100.00%
Weighted Average [Member]
Probability of Occurrence	95.00%