GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Other Intangible Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Line Items]
Accumulated amortization	$ (1,137)	$ (1,094)
Intangible assets, gross, Total	2,216	2,160
Intangible assets, net, Total	1,079	1,066
Customer relationships — commercial
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross	835	832
Accumulated amortization	(641)	(619)
Intangible assets, net	194	213
Proprietary technology
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross	479	476
Accumulated amortization	(454)	(434)
Intangible assets, net	25	42
Customer relationships — defense
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross	62	62
Accumulated amortization	(42)	(41)
Intangible assets, net	20	21
Trade name
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets	790	790
In process research and development
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets	$ 50	$ 0