Investments in Equity Securities (Investment in ABI Narrative) (Details) shares in Millions, $ in Millions			1 Months Ended	3 Months Ended	12 Months Ended
		Mar. 14, 2024 shares	Mar. 31, 2024 USD ($) shares	Mar. 31, 2024 USD ($)	Dec. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Investments [Line Items]
Conversion of stock, shares converted (in shares) | shares		60.0
Proceeds from the ABI Transaction	[1]				$ 0	$ 2,353	$ 0
Increase (decrease) in valuation allowance					$ 91	(939)	$ 57
ABI [Member]
Investments [Line Items]
Equity method investment, ownership percentage (approximately)					8.20%
Equity method investment, number of shares owned, restricted (in shares) | shares					125.0
Equity method investment, number of shares owned, common (in shares) | shares					34.0
Conversion ratio					1
Equity method investment, difference between carrying amount and fair value, percentage (approximately)					24.00%
Difference between carrying amount and underlying equity					$ 2,000
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)
Increase (decrease) in valuation allowance					77	(94)
ABI [Member] | Marketing Administration And Research Costs [Member]
Investments [Line Items]
Equity method investment, disposal, transaction costs						59
ABI [Member] | Interest Income (Expense), Net [Member]
Investments [Line Items]
Equity method investment, disposal, transaction costs						3
ABI [Member] | Secondary Offering [Member]
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 [Member]
Investments [Line Items]
Sale of stock, number of shares issued in transaction (shares) | shares			3.3
Sale of stock, consideration received on transaction			$ 200
Level 1 [Member] | ABI [Member]
Investments [Line Items]
Fair value of investment					10,300	$ 7,900
Equity method investment, difference between carrying amount and fair value					$ 8,300

[1] See Note 6. Investments in Equity Securities.