Contingencies (NPM Adjustment Disputes) (Details) $ in Millions		1 Months Ended						3 Months Ended						12 Months Ended			108 Months Ended	120 Months Ended
	Jan. 29, 2024	Dec. 31, 2023 USD ($)	Aug. 31, 2023 state	Apr. 30, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jan. 31, 2022 state	Jan. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2023 USD ($) state	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Loss Contingencies [Line Items]
Litigation settlement												$ 90
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Litigation settlement														$ 3,700	$ 3,900	$ 4,300
PM USA [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states with settled litigation including Illinois, subsequent expansion | state			38
Amount ordered to be paid from other party																		$ 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 states with settled litigation including Illinois, subsequent expansion | state						36
PM USA [Member] | Health Care Cost Recovery Actions, 2004 NPM Adjustment [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Amount ordered to be paid from other party				$ 52
Loss contingency, number of states not settled | state			9											8
Loss contingency, number of states not in compliance with escrow statues | state														3
Loss contingency, damages sought, value										$ 8			$ 44
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
Loss contingency, reduction to cost of sales								$ 14
Litigation settlement interest								$ 21
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 One | Subsequent Event [Member]
Loss Contingencies [Line Items]
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
PM USA [Member] | Other Disputes Under the State Settlement Agreements [Member]
Loss Contingencies [Line Items]
Amount ordered to be paid from other party							$ 32
New York [Member] | PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement																	$ 503
Illinois [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Litigation settlement											$ 80
Illinois [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2019-2021 | 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 | Pending Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement		$ 19
Iowa [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2020-2022 | Pending Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement		$ 4