Contingencies (NPM Adjustment Disputes) (Details) $ in Millions	1 Months Ended			3 Months Ended						9 Months Ended		12 Months Ended		252 Months Ended	309 Months Ended
	Aug. 31, 2023 USD ($)	Nov. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2023 USD ($) state	Sep. 30, 2022 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2018 state	Sep. 30, 2023 state
Loss Contingencies [Line Items]
Litigation settlement								$ 90
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Litigation settlement				$ 900		$ 1,100				$ 2,800	$ 3,000
PM USA [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states with settled litigation including New York, subsequent expansion | state														36	38
Loss contingency, credits to offset payments										1,240
Litigation settlement, amount expected to be awarded from other party										353
PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, number of additional states extended with settled litigation | state														35
PM USA [Member] | Health Care Cost Recovery Actions [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, number of additional states extended with settled litigation | state														1
PM USA [Member] | Health Care Cost Recovery Actions, 2004 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										388
PM USA [Member] | Health Care Cost Recovery Actions, 2004 NPM Adjustment [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, credits to offset payments										$ 52
Loss contingency, number of states with concluded hearings | state										9
Loss contingency, number of states not in compliance with escrow statues | state										3
Loss contingency, number of states in compliance with escrow statues | state										7
Loss contingency, damages sought, value					$ 5				$ 23
PM USA [Member] | Health Care Cost Recovery Actions, 2004 NPM Adjustment [Member] | Pending Litigation [Member] | Cost of Sales [Member]
Loss Contingencies [Line Items]
Loss contingency, reduction to cost of sales					$ 3				$ 21
PM USA [Member] | Health Care Cost Recovery Actions, 2005 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										$ 181
PM USA [Member] | Health Care Cost Recovery Actions, 2006 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										154
PM USA [Member] | Health Care Cost Recovery Actions, 2007 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										185
PM USA [Member] | Health Care Cost Recovery Actions, 2008 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										250
PM USA [Member] | Health Care Cost Recovery Actions, 2009 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										211
PM USA [Member] | Health Care Cost Recovery Actions, 2010 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										218
PM USA [Member] | Health Care Cost Recovery Actions, 2011 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										166
PM USA [Member] | Health Care Cost Recovery Actions, 2012 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										214
PM USA [Member] | Health Care Cost Recovery Actions, 2013 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										224
PM USA [Member] | Health Care Cost Recovery Actions, 2014 NPM Adjustment [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										258
PM USA [Member] | Health Care Cost Recovery Actions, 2015 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										313
PM USA [Member] | Health Care Cost Recovery Actions, 2016 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										292
PM USA [Member] | Health Care Cost Recovery Actions, 2017 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										285
PM USA [Member] | Health Care Cost Recovery Actions, 2018 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										318
PM USA [Member] | Health Care Cost Recovery Actions, 2019 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										415
PM USA [Member] | Health Care Cost Recovery Actions, 2020 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										572
PM USA [Member] | Health Care Cost Recovery Actions, 2021 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										675
PM USA [Member] | Health Care Cost Recovery Actions, 2022 NPM Adjustments [Member]
Loss Contingencies [Line Items]
Estimate of possible gain										$ 571
PM USA [Member] | Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states not settled | state										8
PM USA [Member] | Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] | Pending Litigation [Member] | Period One
Loss Contingencies [Line Items]
Loss contingency, number of states not settled | state										7
Loss contingency, number of states not settled, arbitration period										3 years
PM USA [Member] | Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] | Pending Litigation [Member] | Period Two
Loss Contingencies [Line Items]
Loss contingency, number of states not settled | state										1
Loss contingency, number of states not settled, arbitration period										1 year
Illinois [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Litigation settlement							$ 80
Illinois [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2004-2021 [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement			$ 80
Illinois [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2019-2021 [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement			$ 20
Iowa [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Litigation settlement				$ 19
Iowa [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2005-2022 [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement	$ 19
Iowa [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2020-2022 [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement	$ 4
New York [Member] | PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement													$ 503
Montana [Member] | PM USA [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement												$ 4
New Mexico [Member] | PM USA [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought, value		$ 84