Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Restricted Stock [Member]
Common Stock, Value, Issued	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Dividends, Common Stock, Cash	(2,013.9)	(1,049.3)	(953.6)	(11.0)
Net income	181.0	0.0	181.0	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ 35.6	0.0	0.0	35.6
Stock Repurchased and Retired During Period, Shares	43,560
Common shares purchased and retired	$ (2.5)	(2.5)	0.0	0.0
Stock issued during period, new issues (in shares)	4,356,973
Stock issued during period, RSU (in shares)	212,587
Stock Issued During Period, Value, New Issues	$ 176.1	176.1	0.0	0.0
Non-vested common shares forfeited or canceled	0.0	0.0	0.0	0.0
Stock compensation expense	1.0	1.0	0.0	0.0
Stock compensation expense	8.0	8.0	0.0	0.0	$ 8.0
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	(79.2)	0.0	(79.2)	0.0
Accumulated Other Comprehensive Income (Loss), Net of Tax	11.0
Stockholders' Equity Attributable to Parent	2,013.9			11.0
Common Stock, Value, Issued	0.0	0.0	0.0	0.0
Dividends, Common Stock, Cash	(1,959.8)	(941.1)	(962.1)	(56.6)
Net income	161.2	0.0	161.2	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ 45.6	0.0	0.0	45.6
Stock Repurchased and Retired During Period, Shares	3,578,743
Common shares purchased and retired	$ (116.8)	(116.8)	0.0	0.0
Stock issued during period, new issues (in shares)	19,491
Stock issued during period, RSU (in shares)	332,085
Stock Issued During Period, Value, New Issues	$ 0.0	0.0	0.0	0.0
Non-vested common shares forfeited or canceled	0.0	0.0	0.0	0.0
Stock compensation expense	1.1	1.1	0.0	0.0
Stock compensation expense	7.5	7.5	0.0	0.0	$ 7.5
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	(128.6)	0.0	(128.6)	0.0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(24.1)	0.0	(24.1)	0.0
Accumulated Other Comprehensive Income (Loss), Net of Tax	56.6
Stockholders' Equity Attributable to Parent	1,959.8			56.6
Common Stock, Value, Issued	$ 0.0	$ 0.0	$ 0.0	$ 0.0

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580