Asset Impairment, Exit, and Implementation Costs (Pre-tax Asset Impairment, Exit and Implementation Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	$ 179	$ 4	$ (1)
Implementation Costs	24
Total	203
Termination, settlement, and curtailment costs	27
Operating Segments [Member] | Smokeable Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	125
Implementation Costs	9
Total	134
Operating Segments [Member] | Smokeless Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	42
Implementation Costs	15
Total	57
Operating Segments [Member] | All Other [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	7
Implementation Costs	0
Total	7
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	5	$ 0	$ 0
Implementation Costs	0
Total	$ 5