Segment Reporting (Narrative) (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) case	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) case
Segment Reporting Information [Line Items]
Net revenue	$ 6,101	$ 6,729	$ 6,663	$ 6,083	$ 6,252	$ 6,905	$ 6,521	$ 6,066	$ 25,576	$ 25,744	$ 25,434
Pre-Tax Charges (Gain) Included in Net Earning	$ 206	$ 19	$ (359)	$ 103	$ (13,785)	$ 786	$ (86)	$ 304
Tobacco and Health Litigation Cases [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded									80	105	150
Tobacco and Health Litigation Cases [Member] | Philip Morris USA [Member] | Interest And Other Debt Expense, Net [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded									$ 8	$ 17	$ 23
Engle Progeny Cases, State [Member] | Philip Morris USA [Member]
Segment Reporting Information [Line Items]
Number of claims resolved | case											7
Engle Progeny Cases [Member]
Segment Reporting Information [Line Items]
Litigation settlement amount											$ 59
Engle Progeny Cases [Member] | Interest And Other Debt Expense, Net [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded											14
Non-Engle Progeny Smoking and Health Case, Schwarz [Member]
Segment Reporting Information [Line Items]
Litigation settlement amount											25
Non-Engle Progeny Smoking and Health Case, Schwarz [Member] | Interest And Other Debt Expense, Net [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded											$ 9
Engle Progeny Cases, Federal [Member] | Philip Morris USA [Member]
Segment Reporting Information [Line Items]
Number of claims resolved | case											415
Sales Revenue, Net [Member] | Credit Concentration Risk [Member] | McLane Company Inc [Member]
Segment Reporting Information [Line Items]
Contribution of net revenues by major customer percentage									26.00%	25.00%	26.00%
Sales Revenue, Net [Member] | Credit Concentration Risk [Member] | Core-Mark Holding Company, Inc. [Member]
Segment Reporting Information [Line Items]
Contribution of net revenues by major customer percentage									14.00%	14.00%	10.00%
Smokeable Products [Member]
Segment Reporting Information [Line Items]
Net revenue									$ 22,636	$ 22,851	$ 22,792
Smokeable Products [Member] | Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded									72	88
Smokeable Products [Member] | Miner and Aspinall [Member] | Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded										67
Smokeable Products [Member] | Engle Progeny Cases [Member] | Interest And Other Debt Expense, Net [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded									$ 8
Smokeable Products [Member] | Engle Progeny Cases [Member] | Philip Morris USA [Member]
Segment Reporting Information [Line Items]
Number of cases | case									11
Smokeable Products [Member] | Engle Progeny Cases, Federal [Member] | Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded											43
Smokeable Products [Member] | Merino [Member] | Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded										16
Smokeable Products [Member] | Lights Ultra Lights Class Actions, Aspinall [Member] | Interest And Other Debt Expense, Net [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded										17
Smokeable Products [Member] | Cigarettes [Member]
Segment Reporting Information [Line Items]
Net revenue									$ 21,900	22,199	22,193
Smokeable Products [Member] | Cigars [Member]
Segment Reporting Information [Line Items]
Net revenue									736	652	599
Wine [Member]
Segment Reporting Information [Line Items]
Net revenue									$ 698	$ 746	$ 692
Wine [Member] | Sales Revenue, Net [Member] | Credit Concentration Risk [Member]
Segment Reporting Information [Line Items]
Contribution of net revenues by major customer percentage									67.00%	69.00%	66.00%
Smokeless Products [Member]
Segment Reporting Information [Line Items]
Net revenue									$ 2,155	$ 2,051	$ 1,879
Operating Segments [Member] | Smokeless Products [Member]
Segment Reporting Information [Line Items]
Inventory recall expense									60
Pension [Member]
Segment Reporting Information [Line Items]
Pre-Tax Charges (Gain) Included in Net Earning									81
Pension [Member] | Smokeable Products [Member]
Segment Reporting Information [Line Items]
Pre-Tax Charges (Gain) Included in Net Earning									57
Pension [Member] | Smokeless Products [Member]
Segment Reporting Information [Line Items]
Pre-Tax Charges (Gain) Included in Net Earning									$ 16