Business Acquisitions Divested Entities Pro Forma Information (Details) - Food Group $ / shares in Units, $ in Millions	3 Months Ended
Mar. 30, 2019 USD ($) $ / shares
Business Acquisition [Line Items]
Divested entities pro forma net sales \| $	$ 123
Income from discontinued operations—net of tax \| $	$ 1
Divested entities pro forma basic earnings per share (per share) \| $ / shares	$ 0
Divested entities pro forma diluted earnings per share (per share) \| $ / shares	$ 0

Pro forma basic earnings per share or earnings per unit, which is commonly presented in initial public offerings based on the terms of the offering.

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