Contingencies (Trial Results Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended					175 Months Ended		175 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jul. 22, 2013 Engle Progeny Cases [Member]	Jul. 22, 2013 Individual Smoking And Health Cases [Member]	Jul. 22, 2013 Since January 1999 [Member] Engle Progeny Cases [Member]	Jul. 22, 2013 Since January 1999 [Member] Engle and Non-Engle Cases [Member]	Jun. 30, 2013 Since January 1999 [Member] Non Engle Progeny Cases [Member]	Jul. 22, 2013 Health Care Cost Recovery [Member]
Loss Contingencies [Line Items]
Judgment Interest Paid Aggregate								$ 139
Pending and upcoming tobacco-related trials					12	3
Number of verdicts returned							44		54
Verdicts returned in favor of defendants							21		37
Judgments Paid Aggregate	$ 0	$ 0	$ 0	$ (121)				$ 245
Verdicts returned in favor of plaintiffs							23		17
Cases reaching final resolution									13
Verdicts Reversed										1