BUSINESS COMBINATIONS - Intangible Assets (Details) - EMC $ in Millions	Sep. 07, 2016 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	8 years
Total identifiable intangible assets	$ 31,218
Trade names
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets acquired	2,320
In-process research and development
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets acquired	890
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 13,460
Weighted Average Useful Life	6 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 13,440
Weighted Average Useful Life	11 years
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 980
Weighted Average Useful Life	8 years
Leasehold assets (liabilities)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 128
Weighted Average Useful Life	25 years