Divestiures, West Africa Investments and Acquisitions Investment in TAF Narrative (Details) - USD ($) $ in Millions	3 Months Ended								8 Months Ended	12 Months Ended
	Jan. 02, 2021	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Business Acquisition [Line Items]
Net sales	$ 3,464	$ 3,429	$ 3,465	$ 3,412	$ 3,223	$ 3,372	$ 3,461	$ 3,522		$ 13,770	$ 13,578	$ 13,547
Tolaram Africa Foods (TAF) PTE LTD
Business Acquisition [Line Items]
Equity method investment, aggregate cost									$ 458			458
Equity Method Investment, Other than Temporary Impairment												$ 45
Net sales									$ 350	$ 586	$ 581