Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes: Income tax provisions for jurisdictions outside the United States of America, as well as state and local income tax provisions, were determined on a separate company basis, and the related assets and liabilities were recorded in PMI’s condensed consolidated balance sheets. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was signed into law in the U.S. to provide certain relief as a result of the COVID-19 pandemic. In addition, governments around the world have enacted or implemented various forms of tax relief measures in response to the economic conditions in the wake of COVID-19. As of September 30, 2020, PMI has determined that neither the CARES Act nor changes to income tax laws or regulations in other jurisdictions had a significant impact on PMI’s effective tax rate, with the exception of the corporate income tax rate reduction in Indonesia. On July 20, 2020, the U.S. Department of the Treasury and the Internal Revenue Service released final and proposed regulations under the Global Intangible Low-Taxed Income (“GILTI”) and other provisions of the Internal Revenue Code. PMI has analyzed these elective regulations and recorded the impact in its condensed consolidated financial statements, as described below. PMI’s effective tax rates for the nine months and three months ended September 30, 2020 were 21.4% and 20.9%, respectively. PMI’s effective tax rates for the nine months and three months ended September 30, 2019 were 22.2% and 24.1%, respectively. The effective tax rate for the nine months ended September 30, 2020 was favorably impacted by a reduction of estimated U.S. federal and state income tax liabilities for years 2018 and 2019 mostly due to the GILTI regulations mentioned above ($93 million), a decrease in deferred tax liabilities related to the fair value adjustment of equity securities held by PMI (for further details, see Note 11. Fair Value Measurements) and a decrease in deferred tax liabilities related to the corporate income tax rate reduction in Indonesia, partially offset by a decrease in deductions related to foreign-derived intangible income for the years 2018 and 2019. The effective tax rate for the nine months ended September 30, 2019 was favorably impacted by the reversal of a deferred tax liability on the unremitted earnings of PMI's Canadian subsidiary, RBH ($49 million), a reduction of estimated U.S. federal income tax on dividend repatriation for the years 2015-2018 ($67 million) and by the Tax Cuts and Jobs Act. PMI estimates that its full-year 2020 effective tax rate will be 22% to 23%, excluding the discrete tax events mentioned above. Changes in currency exchange rates, earnings mix by taxing jurisdiction or future regulatory developments may have an impact on the effective tax rates, which PMI monitors each quarter. Significant judgment is required in determining income tax provisions and in evaluating tax positions. PMI is regularly examined by tax authorities around the world and is currently under examination in a number of jurisdictions. The U.S. federal statute of limitations remains open for the years 2015 and onward. Foreign and U.S. state jurisdictions have statutes of limitations generally ranging from three to five years. It is reasonably possible that within the next 12 months certain tax examinations will close, which could result in a change in unrecognized tax benefits along with related interest and penalties. An estimate of any possible change cannot be made at this time.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.