Contingencies (Scott Class Action) (Details) (USD $)	12 Months Ended			1 Months Ended			3 Months Ended		1 Months Ended		3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Smoking And Health Class Actions And Aggregated Claims Litigation [Member]	May 31, 2012 Smoking And Health Class Actions And Aggregated Claims Litigation [Member]	Aug. 31, 2011 Smoking And Health Class Actions And Aggregated Claims Litigation [Member]	Jun. 30, 2012 Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Louisiana/Scott [Member]	Dec. 31, 2012 Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Louisiana/Scott [Member]	Oct. 31, 2011 Scott Class Action [Member]	Oct. 31, 2011 Maximum [Member] Scott Class Action [Member]	Jun. 30, 2012 Previously Recorded [Member] Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Louisiana/Scott [Member]
Loss Contingencies [Line Items]
Compensatory damages jury award total excluding interest								$ 590,000,000
Share of judgment paid						70,000,000
Loss contingency, attorney fees sought										673,000,000
Loss contingency, attorney costs sought									13,000,000
Loss Contingency, Attorney Fees Sought from Court Supervised Fund					114,000,000
Loss contingency, total damages recorded	0	122,000,000
Loss Contingency, Loss in Period							36,000,000				30,000,000
Loss Contingency, Interest Accrued In Period	1,000,000	64,000,000	5,000,000				5,000,000
Defendants waiver of right to refund percentage					50.00%
Loss Contingency, Attorney Fees Paid from Court Supervised Fund				$ 103,000,000