Other Financial Data - Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Basic earnings (loss) per common share:
Earnings	$ 135	$ 207	$ 332	$ 358
Weighted average common shares outstanding (in shares)	170.0	164.9	170.3	164.4
Basic earnings per share amount (in USD per share)	$ 0.79	$ 1.25	$ 1.95	$ 2.18
Diluted earnings per common share:
Earnings	$ 135	$ 207	$ 332	$ 358
Weighted average common shares outstanding (in shares)	170.0	164.9	170.3	164.4
Add effect of dilutive securities:
Share-based awards (in shares)	3.6	4.6	4.5	4.7
Diluted weighted average common shares outstanding (in shares)	173.6	176.1	174.8	175.3
Per share amount (in USD per share)	$ 0.78	$ 1.18	$ 1.90	$ 2.04
2.00% senior convertible notes
Add effect of dilutive securities:
Senior Convertible Notes (in shares)	0.0	6.6	0.0	6.2
2.00% senior convertible notes | Convertible Notes
Add effect of dilutive securities:
Interest rate	2.00%		2.00%
1.75% senior convertible notes
Add effect of dilutive securities:
Senior Convertible Notes (in shares)	0.0	0.0	0.0	0.0
1.75% senior convertible notes | Convertible Notes
Add effect of dilutive securities:
Interest rate	1.75%		1.75%