Benefit Plans - Percentage of Fair Value of Pension Plan Assets (Details) - Pension Plans	Dec. 31, 2025	Dec. 31, 2024
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	100.00%	100.00%
U.S. Plans \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	19.00%	4.00%
U.S. Plans \| Fixed-income securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	70.00%	21.00%
U.S. Plans \| Real estate
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	0.00%	0.00%
U.S. Plans \| Buy-in annuity contracts
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	0.00%	75.00%
U.S. Plans \| Cash and other
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	11.00%	0.00%
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	100.00%	100.00%
Non-U.S. Plans \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	14.00%	14.00%
Non-U.S. Plans \| Fixed-income securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	64.00%	64.00%
Non-U.S. Plans \| Real estate
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	5.00%	4.00%
Non-U.S. Plans \| Buy-in annuity contracts
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	16.00%	17.00%
Non-U.S. Plans \| Cash and other
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of pension plan assets	1.00%	1.00%

Mondelez International, Inc. 10-K