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Capital Stock (Shares Repurchased) (Details) - USD ($) $ in Millions	144 Months Ended
	May 23, 2019	Feb. 02, 2016	Feb. 01, 2016
Equity, Class of Treasury Stock [Line Items]
Share repurchase plan, authorized amount		$ 468.0	$ 300.0
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Aggregate cost of shares repurchased	$ 283.2
Share repurchase plan, remaining capacity	$ 184.7

X

- Definition

Equity impact of the cost of common shares repurchased during the period.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
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