Income Taxes (Components of Provision for Income Taxes) (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
May 31, 2020 |
Feb. 29, 2020 |
Nov. 30, 2019 |
Aug. 31, 2019 |
May 31, 2019 |
Feb. 28, 2019 |
Nov. 30, 2018 |
Aug. 31, 2018 |
May 31, 2020 |
May 31, 2019 |
May 31, 2018 |
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| Income Taxes [Abstract] | |||||||||||
| Federal | $ 265.5 | $ 258.2 | $ 289.1 | ||||||||
| State | 77.5 | 70.7 | 54.1 | ||||||||
| Total current | 343.0 | 328.9 | 343.2 | ||||||||
| Federal | (0.5) | 0.7 | (38.0) | ||||||||
| State | (3.5) | 4.0 | 0.8 | ||||||||
| Total deferred | (4.0) | 4.7 | (37.2) | ||||||||
| Income taxes | $ 70.9 | $ 109.7 | $ 78.3 | $ 80.1 | $ 80.1 | $ 101.0 | $ 73.5 | $ 79.0 | $ 339.0 | $ 333.6 | $ 306.0 |
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- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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