Recently Issued Accounting Standards (Details) $ in Millions	Mar. 31, 2019 USD ($)
Accounting Standards Update 2018-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 4.9
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Additional ROU Asset upon adoption of ASU 2016-02	1,600.0
Additional ROU Liability upon adoption of ASU 2016-02	1,750.0
Certain real estate lease [Member] | Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	(131.6)
ROU asset impairment, impact of adoption of 2016-02	175.4
Income tax benefit, impact of adoption of ASU 2016-02	43.8
Underperforming retail locations [Member] | Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	(37.8)
ROU asset impairment, impact of adoption of 2016-02	$ 49.7