Schedule - VALUATION AND QUALIFYING ACCOUNTS (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Losses on Receivables
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$ 43	$ 13	$ 27
Charged to Costs and Expenses	5	32	0
Charged to Other Accounts	0	0	0
Deductions from Reserves	40	2	14
Ending Balance	8	43	13
Deferred Income Tax Valuation
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	1,578	1,416	1,519
Charged to Costs and Expenses	3,962	280	142
Charged to Other Accounts	0	0	(1)
Deductions from Reserves	90	118	244
Ending Balance	$ 5,450	$ 1,578	$ 1,416