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Investments in Equity Securities (Investment in ABI Narrative) (Details) shares in Millions, $ in Millions |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 14, 2024 shares | Mar. 31, 2024 USD ($) shares | Mar. 31, 2024 USD ($) | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Conversion of stock, shares converted (in shares) | shares |  | 60.0 |  |  |  |  |
Proceeds from the ABI Transaction | [1] |  |  |  | $ 0 | $ 2,353 |
ABI [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 8.10% |  |
Number of restricted shares owned (in shares) | shares |  |  |  |  | 125.0 |  |
Number of ordinary shares owned (in shares) | shares |  |  |  |  | 34.0 |  |
Conversion ratio |  | 1 |  |  |  |  |
Proceeds from the ABI Transaction |  |  |  | $ 2,400 |  |  |
Equity method investment, disposal, transaction costs |  |  |  | 62 |  | 62 |
Pre-tax gain on partial sale of investment |  |  |  | 408 |  |  |
Reclassification from AOCI |  |  |  | (243) |  | (243) |
Release of valuation allowance, amount |  |  |  |  |  | $ 94 |
ABI [Member] | Marketing, Administration, And Research Costs [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, disposal, transaction costs |  |  |  | 59 |  |  |
ABI [Member] | Interest Income (Expense), Net [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, disposal, transaction costs |  |  |  | $ 3 |  |  |
ABI [Member] | Secondary Offering [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (shares) | shares |  |  | 35.0 |  |  |  |
Sale of stock, consideration received on transaction |  |  | $ 2,200 |  |  |  |
ABI [Member] | Private Placement to ABI |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (shares) | shares |  |  | 3.3 |  |  |  |
Sale of stock, consideration received on transaction |  |  | $ 200 |  |  |  |
Fair Value, Inputs, Level 1 [Member] | ABI [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Fair value of equity investment |  |  |  |  | $ 10,900 |  | $ 7,900
Equity method investment, difference between carrying amount and fair value |  |  |  |  | $ 7,800 |  |
Equity method investment, difference between carrying amount and fair value, percentage (approximately) |  |  |  |  | 39.00% |  |
[1] | See Note 6. Investments in Equity Securities.

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