INTANGIBLE ASSETS - Summary of Intangible Assets (Details) $ in Millions	6 Months Ended		12 Months Ended
	Jan. 03, 2020 USD ($)	Dec. 28, 2018 USD ($)	Jan. 01, 2021 USD ($) divestiture	Jan. 03, 2020 USD ($)	Jun. 28, 2019 USD ($)	Jun. 29, 2018 USD ($)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,461		$ 7,667	$ 7,461
Accumulated Amortization	875		1,583	875
Net carrying amount	6,586		6,084	6,586
Total intangibles, gross carrying amount	9,333		9,491	9,333
Total identifiable intangible assets	8,458		7,908	8,458
Business divestiture-related (losses) gains	229	$ 0	$ (51)	229	$ 0	$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Finite-Lived Intangible Assets [Line Items]
Number of business divested | divestiture			3
Business divestiture-related (losses) gains			$ 296
Disposal Group, Held-for-sale, Not Discontinued Operations
Finite-Lived Intangible Assets [Line Items]
Intangibles reclassified to assets of disposal group			5
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangibles	69		21	69
Trade names - corporate
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangibles	1,803		1,803	1,803
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,518		6,863	6,518
Accumulated Amortization	653		1,257	653
Net carrying amount	5,865		5,606	5,865
Developed technologies
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	768		653	768
Accumulated Amortization	183		261	183
Net carrying amount	585		392	585
Contract backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0		19	0
Accumulated Amortization	0		17	0
Net carrying amount	0		2	0
Trade names - corporate
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	165		129	165
Accumulated Amortization	35		45	35
Net carrying amount	130		84	130
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10		3	10
Accumulated Amortization	4		3	4
Net carrying amount	$ 6		$ 0	$ 6