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Note 17 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	May 01, 2021	Apr. 01, 2021	Mar. 31, 2021	Dec. 31, 2020
Accelerated Share Repurchases, Initial Price, Shares (in shares)			263,474
The 5.800% Senior Note [Member]
Debt Instrument, Interest Rate, Stated Percentage			5.80%	5.80%
Subsequent Event [Member] | The 5.800% Senior Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.80%
Repayments of Debt	$ 450
Repayments of Debt, Paid With Borrowings	$ 250
Additional ASR Agreement With Citibank, N.A. [Member]
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 125
Additional ASR Agreement With Citibank, N.A. [Member] | Subsequent Event [Member]
Accelerated Share Repurchases, Initial Price, Shares (in shares)		565,963
Accelerated Share Repurchases, Initial Price Paid Per Share (in dollars per share)		$ 176.69
Accelerated Share Repurchases, Purchase Price		$ 100

X

- Definition

The price paid per share to immediately purchase the targeted number of shares on the date of executing the accelerated share repurchase agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653

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X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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X

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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X

- Definition

The number of shares at initial price for accelerated share repurchases.

+ References

No definition available.

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- Definition

The purchase price of accelerated share repurchases.

+ References

No definition available.

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X

- Definition

The amount of repayments of debt paid through other borrowings.

+ References

No definition available.

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