Common Stock Repurchase Program	6 Months Ended
Sep. 30, 2017
Common Stock Repurchase Program [Abstract]
Common Stock and Debentures Repurchase Program [Text Block]	Common Stock Repurchase Program The Board of Directors has approved stock repurchase programs enabling the Company to repurchase its common stock in the open market or through negotiated transactions with independent financial institutions. On May 16, 2016, the Board authorized the repurchase of up to $1.00 billion of the Company's common stock and debentures (2016 Repurchase Program). The 2016 Repurchase Program has no stated expiration date. Through September 30, 2017, the Company had used $555.4 million of the $1.00 billion authorized under the 2016 Repurchase Program, leaving $444.6 million available for future repurchases. The Company’s current policy is to retire all repurchased shares, and consequently, no treasury shares were held as of September 30, 2017 and April 1, 2017. During the first six months of fiscal year 2018, the Company repurchased 3.7 million shares of common stock in the open market and through an accelerated share repurchase agreement with an independent financial institution for a total of $237.5 million. During the first six months of fiscal year 2017, the Company repurchased 4.1 million shares of common stock in the open market for a total of $200.1 million.

Common Stock Repurchase Program

The Board of Directors has approved stock repurchase programs enabling the Company to repurchase its common stock in the open market or through negotiated transactions with independent financial institutions. On May 16, 2016, the Board authorized the repurchase of up to $1.00 billion of the Company's common stock and debentures (2016 Repurchase Program). The 2016 Repurchase Program has no stated expiration date.

Through September 30, 2017, the Company had used $555.4 million of the $1.00 billion authorized under the 2016 Repurchase Program, leaving $444.6 million available for future repurchases. The Company’s current policy is to retire all repurchased shares, and consequently, no treasury shares were held as of September 30, 2017 and April 1, 2017.

During the first six months of fiscal year 2018, the Company repurchased 3.7 million shares of common stock in the open market and through an accelerated share repurchase agreement with an independent financial institution for a total of $237.5 million. During the first six months of fiscal year 2017, the Company repurchased 4.1 million shares of common stock in the open market for a total of $200.1 million.