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ACQUISITIONS AND INVESTMENTS - Additional Information (Detail) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 02, 2021 USD ($) | Feb. 24, 2020 USD ($) | Jan. 02, 2019 USD ($) | Nov. 30, 2020 USD ($) | Jul. 03, 2021 USD ($) | Jun. 27, 2020 USD ($) | Jul. 03, 2021 USD ($) | Jun. 27, 2020 USD ($) | Jan. 02, 2021 USD ($) Acquisition | Dec. 28, 2019 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price for acquisitions net of cash acquired |  |  |  |  | $ 1,300,000 | $ (400,000) | $ 1,500,000 | $ 1,302,000,000.0 |  |
Number of businesses acquired | Acquisition |  |  |  |  |  |  |  |  | 1 |
Goodwill | $ 10,038,100,000 |  |  |  | 9,989,300,000 |  | 9,989,300,000 |  | $ 10,038,100,000 |
MTD approximate 2019 annual revenue |  |  |  |  | $ 4,300,900,000 | $ 3,147,400,000 | $ 8,498,000,000.0 | $ 6,276,800,000 |  |
MTD |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  | 20.00% |  |  |  |  |  |  |
Cash paid for equity method investment |  |  | $ 234,000,000 |  |  |  |  |  |  |
MTD approximate 2019 annual revenue |  |  |  |  |  |  |  |  |  | $ 2,600,000,000
Option to purchase additional ownership in equity method investment, as a percent |  |  | 80.00% |  |  |  |  |  |  |
Consolidated Aerospace Manufacturing (CAM) |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Estimated purchase price |  | $ 1,460,000,000 |  |  |  |  |  |  |  |
Purchase price for acquisitions net of cash acquired |  | 1,300,000,000 |  |  |  |  |  |  |  |
Contingent consideration |  | 200,000,000.0 |  |  |  |  |  |  |  |
Fair value of contingent consideration at date of acquisition |  | $ 155,300,000 |  |  |  |  |  |  |  |
Payment for contingent consideration liability |  |  |  | $ 100,000,000 |  |  |  |  |  |
Change in range of outcomes, contingent consideration, maximum | 55,300,000 |  |  |  |  |  |  |  |  |
Weighted average useful life of intangible assets |  | 20 years |  |  |  |  |  |  |  |
Estimate of tax deductible goodwill |  | $ 569,800,000 |  |  |  |  |  |  |  |
Estimated acquisition date value |  | 859,500,000 |  |  |  |  |  |  |  |
Goodwill |  | $ 632,300,000 |  |  |  |  |  |  |  |
Individually Immaterial Business Acquisition in 2020 |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price for acquisitions net of cash acquired |  |  |  |  |  |  |  |  | $ 27,800,000 |
Weighted average useful life of intangible assets |  |  |  |  |  |  |  |  | 8 years |
Estimated acquisition date value | 13,400,000 |  |  |  |  |  |  |  | $ 13,400,000 |
Finite-lived intangible assets | 14,800,000 |  |  |  |  |  |  |  | 14,800,000 |
Goodwill | $ 14,400,000 |  |  |  |  |  |  |  | $ 14,400,000 |

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