Debt Table (Details) - USD ($) $ in Millions	Feb. 29, 2020	Nov. 30, 2019	Sep. 30, 2019
Debt Instrument [Line Items]
Debt issuance costs	$ (45.5)	$ (47.7)
Finance leases	6.3	6.6
Total debt	5,212.4	5,125.5
Current portion	(251.1)	(251.1)
Total long-term debt	4,961.3	4,874.4
5.00% Senior Notes due 2022
Debt Instrument [Line Items]
Senior notes	748.2	748.2
Debt Instrument, Fair Value Disclosure	$ 806.3	798.2
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.00%
Long-term Debt, Maturity Date	Nov. 01, 2022
4.125% Senior Notes Due 2023
Debt Instrument [Line Items]
Senior notes	$ 499.0	498.9
Debt Instrument, Fair Value Disclosure	$ 537.2	528.8
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.125%
Long-term Debt, Maturity Date	Aug. 01, 2023
3.625% Senior Notes Due 2024
Debt Instrument [Line Items]
Senior notes	$ 399.0	398.9
Debt Instrument, Fair Value Disclosure	$ 424.1	416.4
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.625%
Long-term Debt, Maturity Date	May 01, 2024
4.75% Senior Notes Due 2025
Debt Instrument [Line Items]
Senior notes	$ 811.3	811.8
Debt Instrument, Fair Value Disclosure	$ 888.6	873.6
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.75%
Long-term Debt, Maturity Date	Feb. 15, 2025
4.00% Senior Notes Due 2026
Debt Instrument [Line Items]
Senior notes	$ 500.0	500.0
Debt Instrument, Fair Value Disclosure	$ 549.9	530.2
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.00%
Long-term Debt, Maturity Date	Mar. 01, 2026
4.75% Senior Notes Due 2028
Debt Instrument [Line Items]
Senior notes	$ 747.7	747.6
Debt Instrument, Fair Value Disclosure	$ 869.5	838.4
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.75%
Long-term Debt, Maturity Date	Aug. 01, 2028
4.25% Senior Notes Due 2029
Debt Instrument [Line Items]
Senior notes	$ 973.4	974.2
Debt Instrument, Fair Value Disclosure	$ 1,073.8	1,026.7
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.25%
Long-term Debt, Maturity Date	May 01, 2029
2019 Credit Agreement
Debt Instrument [Line Items]
Short-term Debt	$ 250.0	250.0	$ 250.0
Debt Instrument, Fair Value Disclosure	$ 250.0	250.0
Long-term Debt, Maturity Date	Sep. 01, 2020
2019 revolving credit facility
Debt Instrument [Line Items]
Credit facility, amount outstanding	$ 323.0	237.0
Debt Instrument, Fair Value Disclosure	$ 323.0	$ 237.0
Long-term Debt, Maturity Date	Nov. 01, 2024

Amount of short-term and long-term debt and lease obligation.

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