Earnings (Loss) Per Share (Securities Not Included in the Computation of Diluted Loss Income per Share) (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted (loss) income per share (shares)	4.2	0.0	2.7	0.0
Stock-based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted (loss) income per share (shares)	4.2	0.0	1.9	0.0
Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted (loss) income per share (shares)	0.0	0.0	0.8	0.0