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Asset Impairment, Exit and Implementation Costs (Pre-tax Asset Impairment, Exit and Implementation Costs) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairment and exit costs | $ 1 | $ (2) | $ 74 | $ 2
Plus amounts included in net periodic benefit income, excluding service cost, Asset Impairment and Exit Costs |  |  | 12 | 0
Total, Asset Impairment and Exit Costs | 1 | (2) | 86 | 2
Implementation Costs |  |  | 25 | 4
Plus amounts included in net period benefit income, excluding service cost, Implementation Costs |  |  | 0 | 0
Total, Implementation Costs | (4) | 1 | (25) | (4)
Restructuring Charges |  |  | 99 | 6
Plus amounts included in net periodic benefit income, excluding service cost, Total |  |  | 12 | 0
Total restructuring | 5 | (3) | 111 | 6
Operating Segments [Member] | Smokeable Products [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairment and exit costs | 0 | (5) | 50 | (4)
Implementation Costs | 4 | (1) | 29 | 1
Restructuring Charges | 4 | (6) | 79 | (3)
Operating Segments [Member] | Smokeless Products [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairment and exit costs | 1 | 3 | 9 | 6
Implementation Costs | 0 | 0 | 3 | 3
Restructuring Charges | 1 | 3 | 12 | 9
Operating Segments [Member] | All Other [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairment and exit costs |  |  | 14 | 0
Implementation Costs |  |  | (7) | 0
Restructuring Charges |  |  | 7 | 0
Corporate, Non-Segment [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairment and exit costs | 0 | $ 0 | 1 | 0
Implementation Costs |  |  | 0 | 0
Restructuring Charges |  |  | 1 | $ 0
Cost of Sales [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs | 1 |  | 1 |
Marketing Administration And Research Costs [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs | $ (3) |  | $ (26) |

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