Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets - Additional Disclosure (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Impairment of tangible and other intangible assets	$ 0
Goodwill, Impairment Loss			$ 0
Continuing Operations [Member]
Impairment of tangible and other intangible assets		$ 42,000,000