SIGNIFICANT ACCOUNTING POLICIES - Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Total amortization expense related to other intangible assets during the last three years and future estimated amortization
Total amortization expense related to other intangible assets	$ 317	$ 308	$ 290
2019	310
2020	303
2021	298
2022	292
2023	$ 284
Customer relationships
Other intangible assets
Weighted-average useful life of other amortizable assets	14 years
Trademarks
Other intangible assets
Weighted-average useful life of other amortizable assets	14 years
Patents
Other intangible assets
Weighted-average useful life of other amortizable assets	14 years
Other technology
Other intangible assets
Weighted-average useful life of other amortizable assets	5 years
Other intangibles
Other intangible assets
Weighted-average useful life of other amortizable assets	14 years	14 years