Asset Impairment, Exit and Implementation Costs (Pre-tax Asset Impairment, Exit and Implementation Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	$ 383	$ 32	$ 149
Asset Impairment and Business Exit Costs, Net	386	33	179
Implementation Costs	67	45	24
Total	450	77	173
Less amounts included in net periodic benefit (income) cost, excluding service cost, asset impairment and exit costs	3	1	30
Less amounts included in net periodic benefit (income) cost, excluding service cost, implementation costs	0	0	0
Less amounts included in net periodic benefit (income) cost, excluding service cost, total	3	1	30
Other Restructuring Costs, Net	67	45	24
Restructuring Charges, Net	453	78	203
Operating Segments [Member] | Smokeable Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Business Exit Costs, Net	82	5	125
Other Restructuring Costs, Net	1	17	9
Restructuring Charges, Net	83	22	134
Operating Segments [Member] | Smokeless Products [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Business Exit Costs, Net	20	28	42
Other Restructuring Costs, Net	3	28	15
Restructuring Charges, Net	23	56	57
Operating Segments [Member] | Wine [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Business Exit Costs, Net	54	0	0
Other Restructuring Costs, Net	0	0	0
Restructuring Charges, Net	54	0	0
Operating Segments [Member] | All Other [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Business Exit Costs, Net	227	0	7
Other Restructuring Costs, Net	63	0	0
Restructuring Charges, Net	290	0	7
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment and Exit Costs	0	0	5
Asset Impairment and Business Exit Costs, Net	3	0	5
Other Restructuring Costs, Net	0	0	0
Restructuring Charges, Net	3	$ 0	$ 5
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs, Net	17
Marketing, Adminstration and Research Costs [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs, Net	$ 7