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Contingencies (2003-2014 NPM Adjustment Disputes - Settlement with 26 States and Territories and Settlement with New York) (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2017 USD ($) | Nov. 30, 1998 state | Jun. 30, 2017 USD ($) state plantiff | Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jun. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2017 USD ($) state | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($) plantiff
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, amount |  |  | $ 1,200 |  |  | $ 1,200 |  | $ 2,300 |  |
Other liabilities |  |  | $ 394 |  | $ 427 |  |  | 394 |  | $ 427
Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of states with settled litigation | state |  | 46 |  |  |  |  |  |  |  |
Litigation settlement, amount |  |  |  |  |  |  |  |  | $ 2,300 |
PM USA [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss contingency, number of states | plantiff |  |  | 52 |  |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of states with settled litigation | plantiff |  |  | 26 |  |  |  |  |  |  | 24
Litigation settlement, amount |  |  |  |  |  |  |  | $ 702 |  |
Number of motions denied without appeal | state |  |  | 1 |  |  |  |  | 1 |  |
PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member] | RHODE ISLAND [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, additional amount |  |  | $ 9 |  |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member] | OREGON [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, additional amount |  |  | $ 16 |  |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of states with fIled motion | state |  |  | 14 |  |  |  |  | 14 |  |
PM USA [Member] | Health Care Cost Recovery Actions, 2013-2014 Transition Years [Member] | Settled Litigation [Member] | RHODE ISLAND [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, additional amount |  |  | $ 2 |  |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions, 2013-2015 Transition Years [Member] | Settled Litigation [Member] | OREGON [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, additional amount |  |  | 4 |  |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions, 2004-2014 NPM Adjustment [Member] | Settled Litigation [Member] | NEW YORK [Member] | Cost of Sales [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, amount |  |  |  |  |  |  |  |  |  | $ 126
PM USA [Member] | Health Care Cost Recovery Actions, 2004-2014 NPM Adjustment [Member] | Pending Litigation [Member] | RHODE ISLAND AND OREGON [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, amount |  |  |  | $ 25 |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions, 2004-2014 NPM Adjustment [Member] | Pending Litigation [Member] | NEW YORK [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation settlement, amount |  |  |  | $ 32 | $ 58 |  | $ 126 |  |  |
Litigation settlement, reduction in payment | $ 44 |  |  |  |  |  |  |  |  |
PM USA [Member] | Health Care Cost Recovery Actions, 2015 NPM Adjustments [Member] | Settled Litigation [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Other liabilities |  |  | $ 46 |  |  | $ 43 |  | $ 46 | $ 43 |

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