Net Income Per Common Share Net Income Per Common Share (Details 2) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Earnings Per Share [Abstract]
Net income	$ 11,945	$ 141,846	$ 346,722	$ 469,087
Weighted Average Number of Shares Outstanding, Basic	254,089	250,982	248,671	252,811
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	3,235	2,907	2,843	2,400
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	0	10,165	1,990	9,212
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	784	6,727	5,491	4,759
Weighted Average Number of Shares Outstanding, Diluted	258,108	270,781	258,995	269,182
Earnings Per Share, Basic	$ 0.05	$ 0.57	$ 1.39	$ 1.86
Earnings Per Share, Diluted	$ 0.05	$ 0.52	$ 1.34	$ 1.74