Goodwill And Intangible Assets (Schedule Of Amortized And Non-Amortized Intangible Assets) (Details) - USD ($) $ in Millions	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Gross carrying amount	$ 308.3	$ 311.3
Finite-lived intangible assets, Accumulated amortization	104.3	84.9
Goodwill	4,505.2	4,527.9
Indefinite-lived intangible assets, total	7,148.2	7,174.8
Total goodwill and intangible assets, Gross carrying amount	7,456.5	7,486.1
Total goodwill and intangible assets, Accumulated amortization	104.3	84.9
Goodwill [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Goodwill	4,505.2	4,527.9
Brand Names [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	2,643.0	2,646.9
Consumer Segment [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Goodwill	3,377.6	3,398.9	$ 3,385.4
Consumer Segment [Member] | Reckitt Benckiser's Food Division [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Goodwill		1,765.6
Flavor Solutions Segment [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Goodwill	$ 1,127.6	1,129.0	$ 1,104.7
Flavor Solutions Segment [Member] | Reckitt Benckiser's Food Division [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Goodwill		$ 882.9