QUARTERLY FINANCIAL DATA (UNAUDITED) - Quarterly Financial Results (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended					3 Months Ended								6 Months Ended		12 Months Ended
	Jul. 31, 2019	May 31, 2019	Apr. 30, 2019	Feb. 28, 2019	Nov. 30, 2018	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information [Line Items]
Net sales						$ 3,039	$ 2,851	$ 2,834	$ 2,638	$ 2,833	$ 2,761	$ 2,813	$ 2,692	$ 5,472	$ 5,505	$ 11,362	$ 11,099	$ 10,584
Gross margin						1,298	1,230	1,153	1,080	1,183	1,232	1,223	1,121	2,233	$ 2,344	4,761	4,759	4,474
Less: Income from continuing operations attributable to noncontrolling interests										$ 311	$ 518	$ 341	$ 382			$ 1,001	$ 1,552	$ 609
Income (loss) from continuing operations per common share
Basic (in dollars per share)										$ 0.59	$ 0.97	$ 0.64	$ 0.71		$ 1.35	$ 1.97	$ 2.91	$ 1.12
Diluted (in dollars per share)										$ 0.58	$ 0.95	$ 0.62	$ 0.69		$ 1.32	$ 1.93	$ 2.84	$ 1.10
Loss from discontinued operations, net of tax										$ (6)	$ 0	$ 0	$ 0		$ 0	$ 0	$ (6)	$ (7)
(Loss) income from discontinued operations per common share
Basic (in dollars per share)										$ (0.01)	$ 0	$ 0	$ 0		$ 0	$ 0	$ (0.01)	$ (0.01)
Diluted (in dollars per share)										$ (0.01)	$ 0	$ 0	$ 0		$ 0	$ 0	$ (0.01)	$ (0.02)
Net income (loss)						$ (23)	$ 369	$ 313	$ 342	$ 305	$ 518	$ 341	$ 382	$ 655	$ 723	$ 1,001	$ 1,546	$ 602
Earnings per share
Basic (in dollars per share)						$ (0.05)	$ 0.72	$ 0.61	$ 0.67	$ 0.58	$ 0.97	$ 0.64	$ 0.71	$ 1.28	$ 1.35	$ 1.97	$ 2.90	$ 1.11
Diluted (in dollars per share)						(0.05)	0.71	0.60	0.66	0.57	0.95	0.62	0.69	$ 1.26	$ 1.32	1.93	2.83	1.08
Cash dividends declared per common share (in dollars per share)	$ 0.22	$ 0.22	$ 0.19	$ 0.19	$ 0.22	$ 0.220	0.220	0.220	0.190	0.190	0.190	0.190	0.160			$ 0.85	$ 0.73	$ 0.61
Market price per common share
Settlement charge						$ 755										$ (755)	$ (1)	$ (2)
Maximum
Market price per common share
High/Low market price per common share (in dollars per share)						$ 88.45	89.78	82.41	81.31	77.80	77.75	75.41	72.26			$ 89.78	$ 77.80
Minimum
Market price per common share
High/Low market price per common share (in dollars per share)						$ 76.70	$ 81.40	$ 73.44	$ 64.48	$ 61.45	$ 70.71	$ 63.43	$ 62.56			$ 64.48	$ 61.45