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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Details)	6 Months Ended	12 Months Ended
	Jan. 03, 2020 USD ($)	Jun. 28, 2019 USD ($)	Jun. 29, 2018 USD ($)	Jun. 30, 2017 USD ($)	Nov. 27, 2019 USD ($)	Sep. 27, 2019 contract	Jan. 31, 2019 USD ($)
Derivative [Line Items]
Amounts recognized in earnings related to hedging firm commitments no longer qualified as fair value hedges	$ 0	$ 0	$ 0	$ 0
Long-term debt	6,825,000,000	3,443,000,000	3,740,000,000
Accumulated other comprehensive loss	508,000,000	707,000,000	202,000,000
2.7% notes, due April 27, 2020 | Treasury Rate
Derivative [Line Items]
Debt interest rate							2.70%
Aggregate principal amount of debt redeemed					$ 400,000,000
4.95% notes, due February 15, 2021 | Treasury Rate
Derivative [Line Items]
Long-term debt							$ 650,000,000
Debt interest rate							4.95%
Fixed-rate debt
Derivative [Line Items]
Long-term debt	6,575,000,000	3,193,000,000	3,190,000,000
Treasury locks
Derivative [Line Items]
Accumulated other comprehensive loss	24,000,000
Fair Value Hedging | Foreign currency forward contracts
Derivative [Line Items]
Derivative notional amount	0
Fair Value Hedging | Treasury locks
Derivative [Line Items]
Fair value of derivative liability		26,000,000
Cash Flow Hedges | Foreign currency forward contracts
Derivative [Line Items]
Derivative notional amount	511,000,000
Pre-tax loss from cash flow hedges recognized in other comprehensive income	3,000,000
Estimated amount of existing losses to be reclassified into earnings within the next 12 months	2,000,000
Cash Flow Hedges | Treasury locks
Derivative [Line Items]
Derivative notional amount	650,000,000
Accumulated other comprehensive loss	16,000,000	20,000,000
Cash Flow Hedges | Treasury locks | L3Harris
Derivative [Line Items]
Number of open derivative contracts | contract						2
Fair value of derivative liability	35,000,000
Level 2 | Cash Flow Hedges | Treasury locks
Derivative [Line Items]
Fair value of derivative liability	56,000,000
2.900% notes, due December 15, 2029 | Fixed-rate debt
Derivative [Line Items]
Long-term debt	$ 400,000,000	$ 0	$ 0
Debt interest rate	2.90%				2.90%

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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