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Segment Reporting Schedule of NPM Adjustment Items (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 30 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2015
NPM Adjustment [Line Items] |  |  |  |  |
NPM Adjustment Items | $ 26 |  |  | $ 90 |
Non-Participating Manufacturer Adjustment Settlement [Member] | NPM Adjustment to Cost Of Sales [Member] | PM USA [Member] | Smokeable Products [Member] |  |  |  |  |
NPM Adjustment [Line Items] |  |  |  |  |
NPM Adjustment Items | $ 43 | $ 36 | $ 483 | $ 43 | $ 519

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