Stockholders' Equity and Stock-based Compensation (Summary of Share Activity) (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jul. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Preferred stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	3.4	3.4	3.4	3.4
Common stock issued in connection with Mandatory Convertible Preferred Stock conversions and LYONs’ conversions	(1.7)	0.0	(1.7)	0.0
Balance, end of period	1.7	3.4	1.7	3.4
Common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	857.0	853.7	855.7	851.3
Common stock-based compensation awards	0.4	0.7	1.7	2.2
Balance, end of period	868.4	854.4	868.4	854.4
Common stock | Common stock issued in connection with Liquid Yield Option Notes (“LYONs”) conversions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in connection with Mandatory Convertible Preferred Stock conversions and LYONs’ conversions	0.0	0.0	0.0	0.9
Common stock | Conversion of MCPS to common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in connection with Mandatory Convertible Preferred Stock conversions and LYONs’ conversions	11.0	0.0	11.0	0.0