Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Aug. 01, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Variation margin receivable, derivative	$ 364	$ 263
Clif Bar
Derivative Instruments, Gain (Loss) [Line Items]
Contingent consideration arrangement, additional consideration to be paid, minimum			$ 0
Contingent consideration arrangement, additional consideration to be paid, maximum			$ 2,400
Significant Unobservable Inputs (Level 3)
Derivative Instruments, Gain (Loss) [Line Items]
Contingent consideration, liability	149	179
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, aggregate notional value	1,932	$ 4,189
Cash Flow Hedges | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Expected transfer of losses (net of taxes) for interest rate cash flow hedges to earnings during the next 12 months	$ 38
Hedged forecasted transaction period	3 years
Net Investment Hedging | Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, aggregate notional value	$ 9,500
Derivatives designated as accounting hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, aggregate notional value	$ 1,000