Contingencies (Other Litigation Matters Narrative) (Details) (Lights Ultra Lights Class Actions [Member], Illinois Price [Member], USD $) In Billions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Loss Contingencies [Line Items]
Loss contingency, period of occurrence	March 2003
Loss Contingency, Date of Dismissal	Dec. 31, 2006
Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Compensatory Damages	7.1
Loss Contingency, Damages Awarded, Punitive Damages	3.0