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Ultimate Annual Turnover Rate

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as current. Excludes other postretirement benefit plan.

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Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of contributions received by defined benefit plan from participant which increases plan assets.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Amount of cost for defined contribution plan.

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Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.

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Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

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Benefit Plans - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
Benefit Plans - Narrative (Details) - USD ($) $ in Millions	Jul. 11, 2019	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Plan assets related to certain insurance contracts		$ 97	$ 117
Expense for defined contribution plans		$ 66	66	$ 73
Fixed-income securities \| U.S. and International Investment Grade Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		95.00%
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Period for recognition of net periodic benefit costs		4 years
U.S. Plans \| North America \| Bakery and Confectionery Union and Industry International Pension Fund
Defined Benefit Plan Disclosure [Line Items]
Undiscounted withdrawal liability	$ 491	$ 328
Withdrawal liability payment term	20 years
Accreted interest		10	11	11
U.S. Plans \| North America \| Bakery and Confectionery Union and Industry International Pension Fund \| Other current liabilities
Defined Benefit Plan Disclosure [Line Items]
Undiscounted withdrawal liability		15
U.S. Plans \| North America \| Bakery and Confectionery Union and Industry International Pension Fund \| Other long-term liabilities
Defined Benefit Plan Disclosure [Line Items]
Undiscounted withdrawal liability		313
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net pension asset		574	583
Pension Plans \| U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation		1,200	1,200
Employer contributions		6
Estimated future employer contributions during in 2024		4
Net periodic postretirement (benefit)/cost		$ (14)	$ (2)	13
Weighted-average discount rate		5.22%	5.55%
Rate of compensation cost increases		4.00%	4.00%
Pension Plans \| Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation		$ 7,300	$ 6,800
Employer contributions		141
Employee contributions		21
Estimated future employer contributions during in 2024		128
Net periodic postretirement (benefit)/cost		$ (4)	$ (28)	(42)
Weighted-average discount rate		4.03%	4.51%
Rate of compensation cost increases		3.22%	3.22%
Pension Plans \| Non-U.S. Plans \| Fixed-income securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		53.00%
Pension Plans \| Non-U.S. Plans \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		14.00%
Pension Plans \| Non-U.S. Plans \| Buy-in annuity policies
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		29.00%
Pension Plans \| Non-U.S. Plans \| Real estate
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		4.00%
Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Current portion of accrued postretirement benefit obligation		$ 11	$ 16
Postretirement Benefit Plans \| Multiemployer Medical Plans
Defined Benefit Plan Disclosure [Line Items]
Multiemployer medical plan contributions		18	17	19
Postretirement Benefit Plans \| U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contributions		$ 76	$ 0
Weighted-average discount rate		5.20%	5.53%
Postretirement Benefit Plans \| Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Weighted-average discount rate		5.72%	6.07%
Postemployment Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement (benefit)/cost		$ 4	$ 0	5
Weighted-average discount rate		8.10%	6.30%
Weighted-average ultimate annual turnover rate		0.80%	0.40%
Rate of compensation cost increases		4.00%	4.00%
Net gain for post-employment benefit plans expected to be amortized from AOCI into net periodic postemployment costs during 2024		$ 4
Postretirement Health Care Plan
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement (benefit)/cost		$ (5)	$ 12	$ 14