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v3.20.1

Description of Business, Basis of Presentation and Significant Accounting Policies (Other) (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Sep. 30, 2019 | Apr. 01, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Operating Lease, Liability | $ 164.9 |  |  |  |
Operating Lease, Right-of-Use Asset | 136.9 |  |  |  |
Goodwill | 2,833.5 | $ 2,833.5 | $ 2,740.8 |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) | 250.0 |  |  |  |
Advertising expenses | $ 782.4 | $ 640.1 | $ 654.9 |  |
Timing of payment | 60 days |  |  |  |
Accounting for Leases |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Operating Lease, Liability |  |  |  |  | $ 187.2
Operating Lease, Right-of-Use Asset |  |  |  |  | 157.4
Incentive to Lessee |  |  |  |  | $ 29.8
Minimum | Perpetual Nominal Growth Rate |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Goodwill measurement input | 0.015 |  |  | 0.015 |
Minimum | Discount Rate |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Goodwill measurement input | 0.115 |  |  | 0.10 |
Maximum | Perpetual Nominal Growth Rate |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Goodwill measurement input | 0.040 |  |  | 0.040 |
Maximum | Discount Rate |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Goodwill measurement input | 0.15 |  |  | 0.14 |

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