Contingencies (Federal Government's Lawsuit Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended
	Dec. 31, 2011	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 1999
Loss Contingencies [Line Items]
Loss contingency, amount of district court deposit		$ 128.0	$ 5.0		$ 145.0	$ 10.0
Federal Governments Lawsuit [Member]
Loss Contingencies [Line Items]
Amount of alleged annual costs health care programs, minimum							$ 20,000.0
Damages sought, value							$ 280,000.0
Federal Governments Lawsuit [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Loss contingency, amount of district court deposit	$ 3.1
Loss contingency installment period, years	5 years
Implementation of Corrective Communications [Member] | Federal Governments Lawsuit [Member]
Loss Contingencies [Line Items]
Provision related to litigation recorded				$ 31.0
Implementation of Corrective Communications [Member] | Federal Governments Lawsuit [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Provision related to litigation recorded				$ 31.0