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Estimated Fair Values of Major Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 28, 2019 | Jun. 29, 2019 | Dec. 29, 2018
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Document Period End Date | Sep. 28, 2019 |  |
Goodwill | $ 9,160.0 |  | $ 8,956.7
Equipment Solution Attachments Group (IES) [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Fair Value, Net Asset (Liability) |  | $ 341.3 |
Series of Individually Immaterial Business Acquisitions [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Fair Value, Net Asset (Liability) |  | 17.0 | 38.1
Newell Tools [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Fair Value, Net Asset (Liability) |  | 211.8 |
Inventories [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | $ 74.5 |  |
Customer Relationships [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 304.0 |
Customer Relationships [Member] | Series of Individually Immaterial Business Acquisitions [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 5.9 | 32.0
Customer Relationships [Member] | Newell Tools [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 149.0 |
Customer Relationships [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 328.0 |
Customer Relationships [Member] | Series of Individually Immaterial Business Acquisitions [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  | 35.5
Customer Relationships [Member] | Newell Tools [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 167.0 |
Goodwill [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 312.2 |
Goodwill [Member] | Series of Individually Immaterial Business Acquisitions [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 18.2 | $ 66.4
Goodwill [Member] | Newell Tools [Member] |  |  |
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | $ 216.9 |

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