Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of interest payable on debt, including, but not limited to, trade payables.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Debt (Narrative) (Details)	1 Months Ended	3 Months Ended
Debt (Narrative) (Details)	Feb. 28, 2019 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Feb. 28, 2019 EUR (€)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Short-term borrowings		$ 0			$ 12,704,000,000
Debt issuance costs					96,000,000
Accrued interest on short-term borrowings					15,000,000
Long-term debt issued		16,265,000,000	$ 0
Repayment of short-term borrowings		12,800,000,000	$ 0
Accrued interest on long-term debt		210,000,000			207,000,000
Reported Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt		29,200,000,000			13,000,000,000.0
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt		29,900,000,000			12,500,000,000
Term Loan Agreement, JUUL and Cronos [Member]
Debt Instrument [Line Items]
Face amount					$ 12,800,000,000
Pre-tax acquisition-related costs		$ 96,000,000
Repayment of short-term borrowings	$ 12,800,000,000
Senior Notes [Member]
Debt Instrument [Line Items]
Redemption price, percentage		101.00%
Senior Notes [Member] \| USD Denominated Notes [Member]
Debt Instrument [Line Items]
Face amount	11,500,000,000
Senior Notes [Member] \| Euro Denominated Notes [Member]
Debt Instrument [Line Items]
Face amount \| €				€ 4,250,000,000
Long-term debt issued	4,800,000,000
Senior Notes [Member] \| USD Denominated Notes Due 2022 [Member]
Debt Instrument [Line Items]
Face amount	$ 1,000,000,000.0
Stated interest rate	3.49%			3.49%
Senior Notes [Member] \| USD Denominated Notes Due 2024 [Member]
Debt Instrument [Line Items]
Face amount	$ 1,000,000,000.0
Stated interest rate	3.80%			3.80%
Senior Notes [Member] \| USD Denominated Notes Due 2026 [Member]
Debt Instrument [Line Items]
Face amount	$ 1,500,000,000
Stated interest rate	4.40%			4.40%
Senior Notes [Member] \| USD Denominated Notes Due 2029 [Member]
Debt Instrument [Line Items]
Face amount	$ 3,000,000,000.0
Stated interest rate	4.80%			4.80%
Senior Notes [Member] \| USD Denominated Notes Due 2039 [Member]
Debt Instrument [Line Items]
Face amount	$ 2,000,000,000.0
Stated interest rate	5.80%			5.80%
Senior Notes [Member] \| USD Denominated Notes Due 2049 [Member]
Debt Instrument [Line Items]
Face amount	$ 2,500,000,000
Stated interest rate	5.95%			5.95%
Senior Notes [Member] \| USD Denominated Notes Due 2059 [Member]
Debt Instrument [Line Items]
Face amount	$ 500,000,000
Stated interest rate	6.20%			6.20%
Senior Notes [Member] \| Euro Denominated Notes Due 2023 [Member]
Debt Instrument [Line Items]
Face amount \| €				€ 1,250,000,000
Stated interest rate	1.00%			1.00%
Senior Notes [Member] \| Euro Denominated Notes Due 2025 [Member]
Debt Instrument [Line Items]
Face amount \| €				€ 750,000,000
Stated interest rate	1.70%			1.70%
Senior Notes [Member] \| Euro Denominated Notes Due 2027 [Member]
Debt Instrument [Line Items]
Face amount \| €				€ 1,000,000,000.0
Stated interest rate	2.20%			2.20%
Senior Notes [Member] \| Euro Denominated Notes Due 2031 [Member]
Debt Instrument [Line Items]
Face amount \| €				€ 1,250,000,000
Stated interest rate	3.125%			3.125%