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 of Thirty Five Percent to Pretax Earnings (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Income taxes based on U.S. statutory rates									$ 1,352	$ 1,572	$ 1,685
Utilization of foreign tax credit									(27)	(32)	(37)
Nondeductible expenses									3	5	6
Other, net									1	(5)	4
Total income tax expense	$ 380	$ 297	$ 301	$ 350	$ 372	$ 368	$ 428	$ 372	$ 1,329	$ 1,540	$ 1,658