Business Acquisitions Divested Entities Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 28, 2019 |
Sep. 28, 2019 |
Jun. 29, 2019 |
Mar. 30, 2019 |
Dec. 29, 2018 |
Sep. 29, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 28, 2019 |
Dec. 29, 2018 |
|
| Business Acquisition [Line Items] | ||||||||||
| Income (loss) from discontinued operations—net of tax | $ (1) | $ 1 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 |
| Food Group | ||||||||||
| Business Acquisition [Line Items] | ||||||||||
| Divested entities pro forma net sales | 392 | 516 | ||||||||
| Income (loss) from discontinued operations—net of tax | $ 5 | $ 13 | ||||||||
| Divested entities pro forma basic earnings per share | $ 0.03 | $ 0.06 | ||||||||
| Divested entities pro forma diluted earnings per share | $ 0.02 | $ 0.06 | ||||||||