Investments in Equity Securities (Investment in ABI Narrative) (Details) shares in Thousands, $ in Millions				3 Months Ended
		Mar. 19, 2024 USD ($) shares	Mar. 14, 2024 shares	Mar. 31, 2024 USD ($) board_member shares	Mar. 31, 2023 USD ($)	Mar. 13, 2024 shares	Dec. 31, 2023 USD ($)
Schedule of Equity Method Investments [Line Items]
Conversion of stock, shares converted (in shares) | shares			60,000
Proceeds from the ABI Transaction	[1]			$ 2,353	$ 0
ABI [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				8.10%		10.00%
Number of restricted shares owned (in shares) | shares				125,000		185,000
Number of ordinary shares owned (in shares) | shares				34,000		12,000
Proceeds from the ABI Transaction				$ 2,400
Equity method investment, disposal, transaction costs				62
Pre-tax gain on partial sale of investment				408
Reclassification from AOCI				(243)
Effective income tax rate reconciliation, release of valuation allowance, amount				$ 94
Number of board members | board_member				2
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		35,000
Sale of stock, consideration received on transaction		$ 2,200
Sale of stock, lock up period		180 days
Equity method investment, number of shares owned | shares		159,000
ABI [Member] | Over-Allotment Option [Member]
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued in transaction (shares) | shares		5,250
Sale of stock, exercise period		30 days
ABI [Member] | Private Placement to ABI
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued in transaction (shares) | shares		3,300
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				9,700			$ 12,700
Equity method investment, difference between carrying amount and fair value				$ 8,100			$ 9,700
Equity method investment, difference between carrying amount and fair value, percentage (approximately)				20.00%			32.00%

[1] For further discussion of the ABI Transaction, see Note 5. Investments in Equity Securities.