Earnings Per Share And Shareholders' Equity (Schedule of Company's Repurchase Program) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions |
1 Months Ended |
6 Months Ended |
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Sep. 06, 2018 |
Aug. 04, 2018 |
Jul. 29, 2017 |
May 05, 2018 |
Feb. 03, 2018 |
Oct. 28, 2017 |
Apr. 29, 2017 |
Apr. 30, 2016 |
| Shares Repurchased |
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5,065
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2,656
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| Amount Repurchased |
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$ 186.0
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$ 132.0
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| March 2018 Repurchase Program [Member] |
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| Amount Authorized |
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$ 250.0
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| Shares Repurchased |
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4,538
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| Amount Repurchased |
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$ 161.0
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| Average Stock Price of Shares Repurchased within Program |
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$ 35.53
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| Remaining authorized repurchase amount |
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$ 89.0
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| September 2017 Repurchase Program [Member] |
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| Amount Authorized |
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$ 250.0
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| Shares Repurchased |
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527
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| Amount Repurchased |
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$ 25.0
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| Average Stock Price of Shares Repurchased within Program |
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$ 46.98
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| Remaining authorized repurchase amount |
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$ 23.0
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| February 2017 Repurchase Program [Member] |
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| Amount Authorized |
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$ 250.0
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| Shares Repurchased |
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2,605
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| Amount Repurchased |
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$ 129.0
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| Average Stock Price of Shares Repurchased within Program |
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$ 49.58
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| Remaining authorized repurchase amount |
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$ 10.0
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| February 2016 Repurchase Program [Member] |
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| Amount Authorized |
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$ 500.0
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| Shares Repurchased |
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|
51
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| Amount Repurchased |
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$ 3.0
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| Average Stock Price of Shares Repurchased within Program |
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$ 58.95
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| Remaining authorized repurchase amount |
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$ 59.0
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| June 2015 Repurchase Program [Member] |
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| Remaining authorized repurchase amount |
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$ 17.0
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| Accounts Payable [Member] | March 2018 Repurchase Program [Member] |
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| Share repurchase reflected in Accounts payable |
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$ 2.0
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| Accounts Payable [Member] | September 2017 Repurchase Program [Member] |
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| Share repurchase reflected in Accounts payable |
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$ 2.0
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| Accounts Payable [Member] | February 2017 Repurchase Program [Member] |
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| Share repurchase reflected in Accounts payable |
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$ 3.0
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| Subsequent Event [Member] | March 2018 Repurchase Program [Member] |
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| Shares Repurchased |
300
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| Amount Repurchased |
$ 10.0
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