Commitments, Contingencies and Guarantees (Details) - item	1 Months Ended		9 Months Ended
	Jan. 21, 2017	Aug. 30, 2014	Nov. 30, 2019
Rx Savings Program False Claims Act Lawsuit [Member]
Commitments, Contingencies and Guarantees
The number of states attorneys general declined to intervene in action	18
Civil Investigative Demand Regarding Code 1 Drugs [Member]
Commitments, Contingencies and Guarantees
The number of states attorneys general declined to intervene in action		8
Class Actions In Southern District Of California Alleging Overcharges And Overpayment Of Co-pays [Member]
Commitments, Contingencies and Guarantees
Number of claims			2