INCOME TAXES - Principal Reasons for Differences and Related Tax Effects where Income Tax Expense Varies from Amount Computed by Applying Expected United States Tax Rate to Pretax Earnings (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income taxes based on U.S. statutory rates									$ 933	$ 836	$ 1,406
Foreign rate differential									229	220	0
Write-down of U.S. deferred tax liabilities for tax reform change									0	0	(1,933)
Utilization of foreign tax credit									(6)	(3)	(27)
Nondeductible expenses									10	21	10
Other, net									(25)	(11)	(42)
Total income tax expense	$ 276	$ 259	$ 292	$ 314	$ 197	$ 301	$ 299	$ 265	$ 1,141	$ 1,063	$ (586)