Medical Cost Development Medical Cost Development (Tables)

9 Months Ended

Sep. 30, 2013

Medical Cost Development [Abstract]

Changes In Provision For Insured Events Related To Current And Prior Year [Table Text Block]

The following table provides details of the Company's net favorable medical cost development:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2013		2012		2013		2012
Related to Prior Years	$	180	$	170	$	580	$	790
Related to Current Year	110		220		N/A		N/A