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Debt (Details) (USD $)
6 Months Ended 0 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
May 02, 2013
2.95% Notes due 2023 [Member]
May 02, 2013
4.50% Notes due 2043 [Member]
Debt Instrument [Line Items]          
Short-term borrowings $ 0   $ 0    
Proceeds from Issuance of Long-term Debt 996,000,000 0   350,000,000 650,000,000
Debt Instrument, Interest Rate, Stated Percentage       2.95% 4.50%
Debt Instrument, Maturity Date       May 02, 2023 May 02, 2043
Aggregate fair value of Altria's total long-term debt 17,400,000,000   17,600,000,000    
Carrying value of Altria's total long-term debt $ 14,900,000,000   $ 13,900,000,000