SUPPLEMENTAL FINANCIAL INFORMATION - Other Long-Term Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Other Liabilities Noncurrent
Pension and other postretirement benefits	$ 1,260			$ 1,087
Deferred tax liabilities	192			215
Long-term tax liabilities	81			77
Interest rate contracts	52			3
Litigation and environmental reserves	30			31
Restructuring reserves	9			11
Other	108			135
Other non-current liabilities	$ 1,732	$ 1,490	$ 1,504	$ 1,559	$ 1,570	$ 1,612	$ 1,630