Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e681-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580

Statement of Shareholders Equity Statement - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Accumulated comprehensive loss	$ (137.2)
Net income	259.2
Dividends paid	0.0
Taxes paid related to net settlement of stock-based awards, value	(5.3)
Accumulated comprehensive loss	(140.8)
Net income	109.8
Dividends paid	0.0
Taxes paid related to net settlement of stock-based awards, value	(0.5)
Accumulated comprehensive loss	(129.4)
Common Stock, Shares, Outstanding		153.4
Common Stock, Value, Outstanding		$ 153.4
Treasury Stock, Common, Shares			8.4
Treasury Stock, Value	177.5		$ (177.5)
Additional Paid in Capital, Common Stock	470.6			$ 470.6
Retained earnings	1,280.1				$ 1,280.1
Accumulated comprehensive loss	(122.1)					$ (122.1)
Total stockholders' equity	1,604.5
Net income	377.6
Effects of adoption of new accounting pronouncements	(16.7)
Effects of adoption of new accounting pronouncements \| Accounting Standards Update 2014-09 [Member]	(4.4)				(4.4)
Effects of adoption of new accounting pronouncements \| Accounting Standards Update 2018-02 [Member]	0.0				16.7	(16.7)
Net income	377.6
Dividends paid	(56.1)				(56.1)
Issuance of shares for stock plans and stock-based compensation, shares			(0.9)
Issuance of shares for stock plans and stock-based compensation, value	(0.1)		$ 21.1	(21.0)
Purchase of treasury stock			3.5
Purchase of treasury stock	(98.7)		$ (98.7)
Compensation expense associated with stock-based compensation	6.9			6.9
Taxes paid related to net settlement of stock-based awards, shares			0.5
Taxes paid related to net settlement of stock-based awards, value	(9.3)		$ (9.3)
Other comprehensive income	(9.2)					(9.2)
Accumulated comprehensive loss	(147.3)
Net income	124.0
Dividends paid	(18.5)
Taxes paid related to net settlement of stock-based awards, value	(1.5)
Common Stock, Shares, Outstanding		153.4
Common Stock, Value, Outstanding		$ 153.4
Treasury Stock, Common, Shares			11.5
Treasury Stock, Value	264.4		$ (264.4)
Additional Paid in Capital, Common Stock	456.5			$ 456.5
Retained earnings	1,613.9				$ 1,613.9
Accumulated comprehensive loss	(148.0)					$ (148.0)
Total stockholders' equity	$ 1,811.4