Goodwill And Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Summary Of The Change In The Carrying Amount Of Goodwill By Reportable Segment

A summary of the change in the carrying amount of goodwill for our Commercial and Specialty Business segment and Government Business segment (see Note 19, “Segment Information”) for 2015 and 2014 is as follows:

	Commercial and Specialty Business			Government Business			Total
Balance as of January 1, 2014	$	11,554.0		$	5,363.2		$	16,917.2
Measurement period adjustments	(1.6		)	(0.2		)	(1.8		)
Other adjustments	266.5			(99.9		)	166.6
Balance as of December 31, 2014	11,818.9			5,263.1			17,082.0
Measurement period adjustments	—			—			—
Acquisitions	—			480.2			480.2
Balance as of December 31, 2015	$	11,818.9		$	5,743.3		$	17,562.2
Accumulated impairment as of December 31, 2015	$	(41.0	)	$	—		$	(41.0	)

Components Of Other Intangible Assets

The components of other intangible assets as of December 31 are as follows:

	2015							2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Intangible assets with finite lives:
Customer relationships	$	3,394.4	$	(2,670.0	)	$	724.4	$	3,318.4	$	(2,473.4	)	$	845.0
Provider and hospital relationships	150.9		(58.6		)	92.3		140.9		(51.4		)	89.5
Other	90.7		(39.7		)	51.0		61.6		(33.3		)	28.3
Total	3,636.0		(2,768.3		)	867.7		3,520.9		(2,558.1		)	962.8
Intangible assets with indefinite lives:
Blue Cross and Blue Shield and other trademarks	6,298.7		—			6,298.7		6,298.7		—			6,298.7
State Medicaid licenses	991.6		—			991.6		696.6		—			696.6
Total	7,290.3		—			7,290.3		6,995.3		—			6,995.3
Other intangible assets	$	10,926.3	$	(2,768.3	)	$	8,158.0	$	10,516.2	$	(2,558.1	)	$	7,958.1