Net Income Per Common Share Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
Jul. 01, 2017	Jul. 02, 2016
Debt Conversion [Line Items]
Net income	$ 167,245	$ 163,049
Weighted Average Number of Shares Outstanding, Basic	247,911	252,901
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities and Warrants	6,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	3,817	3,064
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities and Warrants	14,069	10,241
Weighted Average Number of Shares Outstanding, Diluted	265,797	266,206
Antidilutive shares excluded from computation of dilutive net income per common share	152	297
Earnings Per Share, Basic	$ 0.67	$ 0.64
Earnings Per Share, Diluted	$ 0.63	$ 0.61
Two And Six Two Five Percent Senior Convertible Debentures [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	$ 600,000
Debt Instrument, Interest Rate, Stated Percentage	2.625%
Debt Instrument, Maturity Date	Jun. 15, 2017

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities and Warrants

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