Contingencies (NPM Adjustment Disputes) (Details) $ in Millions		1 Months Ended					3 Months Ended								6 Months Ended		12 Months Ended		126 Months Ended	318 Months Ended
	Jul. 29, 2024	Feb. 28, 2024 USD ($)	Aug. 31, 2023 USD ($)	Apr. 30, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jan. 31, 2022 state	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2024 USD ($) state	Jun. 30, 2023 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 state
Loss Contingencies [Line Items]
Litigation settlement					$ 90
Loss contingency accrual, provision																	$ 90
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Litigation settlement							$ 900				$ 1,000				$ 1,800	$ 1,900
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																				39
Loss contingency, credits to offset payments																			$ 1,370
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 New York, subsequent expansion | state						36
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 not settled | state															8
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															7
Loss contingency, reduction to cost of sales									$ 14
Litigation settlement interest expense (income)									$ (21)
PM USA [Member] | Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] | Pending Litigation [Member] | Period One [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states not settled | state															6
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 [Member] | 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 [Member]
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 2019-2021 [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement													$ 20
Iowa [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision										$ 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
IDAHO [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Litigation settlement								$ 8
IDAHO [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2005-2022 [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement		$ 8
IDAHO [Member] | PM USA [Member] | Health Care Cost Recovery Actions, Transition Years 2021-2023 [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement		$ 2
New York [Member] | PM USA [Member] | Health Care Cost Recovery Actions [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement																		$ 572