Common Stock Repurchase Program (Details) - USD ($)	7 Months Ended	9 Months Ended
	Dec. 30, 2017	Dec. 30, 2017	Dec. 31, 2016	Apr. 01, 2017	May 16, 2016
Accelerated Share Repurchases [Line Items]
Stock Repurchased and Retired During Period, Value		$ 310,800,000	$ 414,000,000
Stock Repurchased and Retired During Period, Shares		4,700,000	8,000,000
Treasury shares	0	0		0
Repurchase Program Two Thousand Sixteen [Member] [Domain]
Accelerated Share Repurchases [Line Items]
Stock Repurchase Program, Authorized Amount					$ 1,000,000,000
Stock Repurchased During Period, Value	$ 628,700,000.0
Total amount available for future repurchases	$ 371,300,000	$ 371,300,000