Asset Impairment, Exit And Implementation Costs (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2012 2011 Cost Reduction Program [Member]	Jun. 30, 2012 2011 Cost Reduction Program [Member]	Jun. 30, 2012 2011 Cost Reduction Program [Member]	Jun. 30, 2011 Smokeable Products [Member]	Jun. 30, 2011 Smokeable Products [Member]	Jun. 30, 2011 Smokeless Products [Member]	Jun. 30, 2011 Smokeless Products [Member]	Jun. 30, 2012 Other Costs [Member] 2011 Cost Reduction Program [Member]	Jun. 30, 2012 Net Gain [Member] Recorded in Marketing Administrative and research Costs [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment And Restructuring Exit Costs					$ 1	$ 3
Integration costs							2	2
Total net pre-tax restructuring charges expected to be incurred			300
Employee separation costs			220
Other restructuring costs, net			80						8
Pre-Tax Implementation (Gain) Costs	0	9	(8)							(16)
Curtailment (gain) included in marketing, administration and research costs			(26)
Net charges, inception to date				253
Cash payments for restructuring and implementation		41	73
Cash payments since inception				$ 82