XML 37 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2013
Cvs Caremark Corporation Member
Dec. 31, 2013
Pharmaceutical
Walgreens Co Member
Jun. 30, 2013
Pharmaceutical
Walgreens Co Member
Concentration Risk [Line Items]      
Contract expiration date Jun. 30, 2019 Aug. 31, 2013  
Revenue, Major Customer, Percentage     20.00%
Expected JV Operational Date Jul. 01, 2014    
Term of Agreement 10 years    
Quarterly joint venture payment $ 25    
Number of Years of Contract 3 years