Lines of Credit, Long-Term Debt, Commitments and Contingencies (Details) $ in Millions	Jun. 12, 2023 USD ($)	Nov. 11, 2022 employee	Sep. 23, 2022 claim	Sep. 30, 2021 USD ($)	Jul. 21, 2021 plaintiff	Jun. 28, 2018 plaintiff	Mar. 20, 2018 USD ($) subsidiary	Mar. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 22, 2022 claim	May 15, 2018 USD ($)	Apr. 27, 2018 USD ($) employee
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Other long-term debt								$ 38	$ 38
Total debt at face value								1,011	1,012
Current maturities and unamortized costs								(17)	(15)
Long-term debt, less current maturities								994	997
Contingencies
Total liabilities								2,923	2,932
Assets								7,577	$ 7,566
Pork Product Purchasers | Pending Litigation
Contingencies
Number of plaintiffs | plaintiff						12
Pork Compensation Antitrust | Pending Litigation
Contingencies
Number of plaintiffs | employee		3
Cereoil Bankruptcy Trustee - Case One | Pending Litigation
Contingencies
Damages sought							$ 22
Damages sought, including interest							$ 30
Number of subsidiaries | subsidiary							2
Cereoil Bankruptcy Trustee - Case Two | Pending Litigation
Contingencies
Number of individuals employed by Seaboard serving as directors | employee												2
Total liabilities								45				$ 50
Assets												$ 30
Nolston Bankruptcy Trustee | Pending Litigation
Contingencies
Total liabilities								1			$ 29
Assets								$ 0			$ 15
Odette Blanco De Fernandez | Pending Litigation
Contingencies
Number of siblings added as plaintiffs | plaintiff					4
Term of concession to develop port facilities					70 years
Claimed ownership percentage of companies that owned concession and land					20.00%
DPP Class | Pending Litigation
Contingencies
Settlement amount	$ 10
HSBC | Pending Litigation
Contingencies
Number of claims | claim			1							7
Number of claims that were dismissed by a court | claim			6
Number of claims dismissed that can be refiled | claim			3
Number of claims dismissed that cannot be refiled unless successfully appealed | claim			3
Damages sought				$ 10
Interest and other relief sought				$ 3
Cereoil
Contingencies
Percentage of ownership								45.00%
Nolston
Contingencies
Percentage of ownership								45.00%
Committed and uncommitted bank lines
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Weighted average interest rate (as a percent)								6.97%	7.34%
Committed and uncommitted bank lines | Denominated in foreign currencies
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Lines of credit outstanding								$ 91	$ 70
Committed and uncommitted bank lines | South African Rand
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Lines of credit outstanding								77	57
Committed bank lines
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Lines of credit outstanding								224	105
Uncommitted bank lines
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Lines of credit outstanding								165	150
Term loan due 2033
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Debt at face value								975
Total debt at face value								$ 970	$ 973
Effective interest rate (as a percent)								7.05%	7.08%
Foreign subsidiary obligations
Lines of Credit, Long-Term Debt, Commitments and Contingencies
Debt at face value								$ 3	$ 1