Asset Impairment, Exit And Implementation Costs (Pre-Tax Asset Impairment, Exit And Implementation Costs) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012 Smokeable Products [Member]	Mar. 31, 2012 Smokeless Products [Member]	Mar. 31, 2012 General Corporate [Member]	Mar. 31, 2012 Total Products By Line [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment And Restructuring Exit Costs	$ 0	$ 7	$ 14	$ 0	$ 21
Pre-Tax Implementation (Gain) Costs	1	(21)	5	(1)	(17)
Total asset impairment, implementation and restructuring costs		$ (14)	$ 19	$ (1)	$ 4