Asset Impairment, Exit, and Implementation Costs (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit costs and implementation costs	$ 203
Asset impairment and exit costs	179	$ 4	$ (1)
Pre-tax implementation costs	24
Payments for restructuring	73
Cabarrus, North Carolina Manufacturing Facility [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs			(10)
Proceeds from sale of facility			66
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit costs and implementation costs	5
Asset impairment and exit costs	5	$ 0	$ 0
Pre-tax implementation costs	0
Facility Consolidation [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring related costs	$ 150
Expected restructuring related costs (in usd per share)	$ 0.05
Asset impairment, exit costs and implementation costs	$ 71
Charges (in usd per share)	$ 0.03
Charges	$ 70
Effect on future cash flow	90
Asset impairment and exit costs	54
Pre-tax implementation costs	17
Payments for restructuring	4
Facility Consolidation [Member] | Smokeable Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs	25
Pre-tax implementation costs	3
Facility Consolidation [Member] | Smokeless Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs	29
Pre-tax implementation costs	14
Facility Consolidation [Member] | Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring related costs	55
Facility Consolidation [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring related costs	45
Facility Consolidation [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring related costs	50
Productivity Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit costs and implementation costs	$ 132
Charges (in usd per share)	$ 0.04
Asset impairment and exit costs	$ 125
Pre-tax implementation costs	7
Payments for restructuring	69
Productivity Initiative [Member] | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs	5
Productivity Initiative [Member] | Smokeable Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs	100
Pre-tax implementation costs	6
Productivity Initiative [Member] | Smokeless Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs	13
Pre-tax implementation costs	1
Productivity Initiative [Member] | All Other [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs	7
Productivity Initiative [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit costs and implementation costs	117
Productivity Initiative [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit costs and implementation costs	$ 15