Income Taxes (Schedule of Unrecognized Tax Benefits and Consolidated Liability for Tax Contingencies) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 158	$ 258	$ 227	$ 262
Accrued interest and penalties	14	57
Tax credits and other indirect benefits	(3)	(17)
Liability for tax contingencies	169	298
Altria Group, Inc. [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefits	158	228
PMI [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 0	30
Accrued interest and penalties		$ 7