Restructuring and Employee Severance (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Fiscal 2013 Medical Restructuring	Jun. 30, 2014 Fiscal 2013 Medical Restructuring	Dec. 31, 2013 Fiscal 2013 Medical Restructuring	Jun. 30, 2013 Fiscal 2013 Medical Restructuring
Restructuring Cost and Reserve
Restructuring and Related Activities, Initiation Date								Jan. 30, 2013
Restructuring and employee severance	$ 10	$ 1	$ 20	$ 6	$ 6		$ 12
Restructuring and Related Cost, Expected Cost						6	77
Restructuring and Related Cost, Cost Incurred to Date							$ 20	$ 51