SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (CONSOLIDATED) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowances for losses and discounts on receivables
Reserves deducted from assets in the balance sheets:
Balance at beginning of period	$ 29	$ 34	$ 39
Additions
Charged to costs and expenses/charged to income	15	12	15
Other	(2)	(5)	(12)
Deductions	(10)	(12)	(8)
Balance at end of period	32	29	34
Valuation allowance on net deferred tax assets
Reserves deducted from assets in the balance sheets:
Balance at beginning of period	1,135	1,223	1,209
Additions
Charged to costs and expenses/charged to income	3	1	(2)
Other	(32)	5	55
Foreign currency translation	(3)	(20)	(15)
Other	(9)	(74)	(24)
Balance at end of period	$ 1,094	$ 1,135	$ 1,223