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v3.20.1

Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Returns and Allowances |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | $ 35.0 | $ 56.2 | $ 68.6
Charged to Costs and Expenses | 81.2 | 126.0 | 168.3
Charged to Other Accounts | 0.0 | 0.0 | 0.0
Deductions | (82.5) | (147.2) | (180.7)
Balance at End of Period | 33.7 | 35.0 | 56.2
Provision for Doubtful Accounts |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 5.4 | 7.5 | 9.0
Charged to Costs and Expenses | 5.7 | (2.0) | (1.0)
Charged to Other Accounts | 0.0 | 0.0 | 0.0
Deductions | (1.8) | (0.1) | (0.5)
Balance at End of Period | 9.3 | 5.4 | 7.5
Deferred Tax Valuation Allowance |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 401.1 | 73.2 | 5.9
Charged to Costs and Expenses | 4.5 | 313.9 | 67.3
Charged to Other Accounts | 30.2 | 14.0 | 0.0
Deductions | 0.0 | 0.0 | 0.0
Balance at End of Period | $ 435.8 | $ 401.1 | $ 73.2

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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