Annual report pursuant to Section 13 and 15(d)

Income Taxes (Components of Provision for Income Taxes) (Details)

v3.19.2
Income Taxes (Components of Provision for Income Taxes) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
May 31, 2019
Feb. 28, 2019
Nov. 30, 2018
Aug. 31, 2018
May 31, 2018
 [3],[4]
Feb. 28, 2018
 [3],[4]
Nov. 30, 2017
 [3],[4]
Aug. 31, 2017
 [3],[4]
May 31, 2019
May 31, 2018
May 31, 2017
 [1]
Income Taxes [Abstract]                      
Federal                 $ 258.2 $ 289.1 [1] $ 362.0
State                 70.7 54.1 [1] 48.1
Total current                 328.9 343.2 [1] 410.1
Federal                 0.7 (38.0) [1] 21.2
State                 4.0 0.8 [1] 1.5
Total deferred                 4.7 (37.2) [1],[2] 22.7 [2]
Income taxes $ 80.1 $ 101.0 $ 73.5 $ 79.0 $ 86.9 $ 4.1 $ 106.0 $ 109.0 $ 333.6 $ 306.0 [3],[4],[5] $ 432.8 [5]
[1] Amounts have been adjusted to reflect the adoption of ASC Topic 606.
[2] Amounts have been adjusted to reflect the adoption of Accounting Standards Update ("ASU") No. 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force)."
[3] Amounts have been adjusted to reflect the adoption of ASC Topic 606.
[4] As a result of the Tax Act, the effective income tax rate for the three months ended February 28, 2018 was significantly impacted by certain one-time net tax benefits. Refer to Note K of this Item 8 for further details.
[5] Amounts have been adjusted to reflect the adoption of Accounting Standards Codification ("ASC") Topic 606, "Revenue from Contracts with Customers" ("ASC Topic 606").