Share Repurchase Share repurchase (Details) - USD ($) shares in Millions		3 Months Ended
	Nov. 20, 2019	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019
share repurchase plan [Line Items]
Total repurchase authorization	$ 500,000,000.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 362,600,000
ASR Authorized		$ 205,000,000		$ 205,000,000
ASR Shares Repurchased during the period			$ 600,000	3,300,000
Amount paid during the period under ASR Agreement				$ 164,000,000.0
June 13, 2019 Plan [Member]
share repurchase plan [Line Items]
Stock Repurchased During Period, Shares			2.4
Repurchase of equity			$ 130,100,000
November 19, 2019 Plan [Member]
share repurchase plan [Line Items]
Stock Repurchased During Period, Shares			3.5
Repurchase of equity			$ 137,500,000