Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Mar. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Provided by (Used in) Operating Activities
Net earnings (losses)			$ 8,130	$ 5,764	$ 2,475
Adjustments to reconcile net earnings to operating cash flows:
Depreciation and amortization			272	226	244
Deferred income tax provision (benefit)			(230)	(947)	(1,160)	$ (1,160)
Unrecognized tax benefit	[1]		1,111	16	(21)
(Income) losses from investments in equity securities			(243)	3,641	5,979
Dividends from ABI			163	104	119
Loss on Cronos-related financial instruments			0	15	148
Loss on early extinguishment of debt		$ 649	0	0	649
Cash effects of changes:
Receivables	[2]		6	(21)	(18)
Inventories	[2]		(15)	14	57
Accounts payable	[2]		38	92	163
Income taxes	[2]		6	(118)	(149)
Accrued liabilities and other current assets	[2]		280	(129)	165
Accrued settlement charges	[2]		(362)	(424)	(215)
Pension plan contributions			(20)	(20)	(26)
Pension and postretirement, net			(136)	(156)	(175)
Other, net			287	199	170
Net cash provided by (used in) operating activities			9,287	8,256	8,405
Cash Provided by (Used in) Investing Activities
Capital expenditures			(196)	(205)	(169)
Proceeds from the sale of IQOS System commercialization rights			1,700	1,000	0
Proceeds from the Ste. Michelle Transaction, net of cash transferred			0	0	1,176
Acquisition of NJOY, net of cash acquired			(2,751)	0	0
Other, net			(36)	(13)	205
Net cash provided by (used in) investing activities			(1,283)	782	1,212
Cash Provided by (Used in) Financing Activities
Proceeds from short-term borrowings			2,000	0	0
Repayment of short-term borrowings			(2,000)	0	0
Long-term debt issued			998	0	5,472
Long-term debt repaid			(1,566)	(1,105)	(6,542)
Repurchases of common stock			(1,000)	(1,825)	(1,675)
Dividends paid on common stock			(6,779)	(6,599)	(6,446)
Premiums and fees related to early extinguishment of debt			0	0	(623)
Other, net			(27)	(12)	(215)
Net cash provided by (used in) financing activities			(8,374)	(9,541)	(10,029)
Cash, cash equivalents and restricted cash:
Increase (decrease)			(370)	(503)	(412)
Balance at beginning of year		$ 5,006	4,091	4,594	5,006
Balance at end of year			3,721	4,091	4,594	5,006
Supplemental cash flow information:
Cash paid: Interest			1,116	1,119	1,189
Cash Paid: Income taxes			1,890	2,657	2,673
Non-cash investing activities:
Deferred proceeds from the sale of IQOS System commercialization rights			0	1,700	0
Cash and cash equivalents			3,686	4,030	4,544
Restricted cash included in other current assets	[3]		5	15	0
Restricted cash included in other assets	[3]		30	46	50
Cash, cash equivalents and restricted cash			$ 3,721	$ 4,091	$ 4,594	$ 5,006

[1] 2023 relates to unrecognized tax benefit from the ordinary loss for cash tax purposes with respect to a portion of our tax basis associated with our former investment in JUUL. For further discussion, see Note 15. Income Taxes.

[2] 2023 amounts are net of the effects from the NJOY Transaction. For further details, see Note 3. Acquisition of NJOY. 2021 amounts reflect changes from operations for Ste. Michelle prior to the Ste. Michelle Transaction.

[3] Restricted cash consisted primarily of cash deposits collateralizing appeal bonds posted by PM USA to obtain stays of judgments pending appeals. See Note 19. Contingencies.