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Goodwill And Intangible Assets (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2018
Goodwill [Line Items] |  |  |
Goodwill | $ 4,986,300,000 | $ 4,505,200,000 |
Intangible asset amortization expense | $ 20,200,000 | 20,300,000 | $ 20,600,000
Amortizable intangible assets average remaining life, in years | 10 years |  |
Consumer Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | $ 3,711,200,000 | 3,377,600,000 | 3,398,900,000
Goodwill, Acquired During Period | 273,700,000 |  |
Flavor Solutions Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 1,275,100,000 | 1,127,600,000 | $ 1,129,000,000.0
Goodwill, Acquired During Period | 136,800,000 |  |
Reckitt Benckiser's Food Division [Member] |  |  |
Goodwill [Line Items] |  |  |
Payments to acquire businesses, net of cash acquired |  | $ 4,210,000,000 |
Cholula [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Acquired During Period | 410,500,000 |  |
Payments to acquire businesses, net of cash acquired | 803,000,000.0 |  |
Indefinite-lived Intangible Assets Acquired | 380,000,000.0 |  |
Finite-lived Intangible Assets Acquired | $ 21,000,000.0 |  |
Amortizable intangible assets average remaining life, in years | 15 years |  |

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