Contingencies (Trial Results Narrative) (Details) (USD $)	3 Months Ended					171 Months Ended		171 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Apr. 22, 2013 Engle Progeny Cases [Member]	Apr. 22, 2013 Individual Smoking And Health Cases [Member]	Mar. 31, 2013 Since January 1999 [Member] Engle and Non-Engle Cases [Member]	Mar. 31, 2013 Since January 1999 [Member] Non Engle Progency Cases [Member]	Mar. 31, 2013 Health Care Cost Recovery [Member]
Loss Contingencies [Line Items]
Pending and upcoming tobacco-related trials				24	5
Number of verdicts returned				37			52
Verdicts returned in favor of defendants							35
Verdicts returned in favor of plaintiffs							18
Cases reaching final resolution							14
Verdicts Reversed								1
Judgments paid	$ 100,000	$ 121,000,000				$ 245,000,000
Judgment interest paid aggregate						139,000,000
Loss Contingency Accrual, at Carrying Value	6,000,000		0
Loss Contingency Verdicts Returned Since Court Decision Plaintiffs				19
Loss Contingency Verdicts Returned Since Court Decision Defendents				18
Pretax Tobacco and Health charges	5,000,000
commitments and contingencies accrued interest	1,000,000
Commitments and Contingencies Accrued Charges Including Interest		$ 500,000