Commitments and Contingencies (Details)						3 Months Ended
	Jul. 02, 2015 item	Jun. 17, 2015 USD ($)	Apr. 29, 2015 item	Oct. 17, 2014 item	Sep. 18, 2014 item	Jul. 04, 2015 USD ($) item	May. 13, 2015 USD ($)	Sep. 19, 2012 item
Contingencies
Number of foreign companies, where records requested by court			37
Number of subpoenas	2
Number of entities, where records requested by court				8	9
Number of individuals, where records requested by court			5	1	1
Number of search warrants executed authorizing the seizure of certain records from Seaboard's offices in Merriam, Kansas and at the Seaboard Foods employment office and the human resources department in Guymon, Oklahoma.								3
Number of civil or criminal proceedings or charges filed						0
Estimated amount of withdrawal liability | $		$ 11,000,000
Maximum time period to pay out the withdrawal liability		20 years
Accrued liability | $		$ 0
Pork Processing Plant In Sioux City Iowa
Contingencies
Agreed contribution | $							$ 207,400,000
Contribution expected to be made in 2015 | $							$ 25,700,000
Uncommitted bank lines
Debt Instrument
Letters of credit outstanding | $						$ 1,531,000
Committed bank line
Debt Instrument
Letters of credit outstanding | $						$ 0