Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Cash Flows [Abstract]
Net earnings (loss)	$ 858	$ 1,213	$ 849
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities
Asset impairments	83	0	0
Depreciation, amortization and accretion	356	349	310
Pension and postretirement net periodic benefit cost	(58)	(92)	(80)
Pension and postretirement contributions	(47)	(47)	(363)
Actuarial (gain) loss on pension and postretirement plans	87	165	46
Pension curtailments and settlements, net	0	(1)	0
Deferred income taxes, net	(31)	137	(152)
(Gain) loss on disposition of businesses and assets, net	3	7	5
Stock-based compensation	48	71	47
Undistributed earnings in unconsolidated affiliates	(14)	(12)	(52)
Other, net	18	26	12
Operating cash provided by (used in) discontinued operations	0	(10)	8
Changes in operating assets and liabilities
Trade receivables - third party and affiliates, net	165	(48)	(110)
Inventories	6	(158)	(97)
Other assets	(9)	(113)	(7)
Trade payables - third party and affiliates	(59)	15	126
Other liabilities	48	56	261
Net cash provided by (used in) operating activities	1,454	1,558	803
Investing Activities
Capital expenditures on property, plant and equipment	(370)	(337)	(267)
Acquisitions, net of cash acquired	(91)	(144)	(269)
Proceeds from sale of businesses and assets, net	1	13	1
Purchases of marketable securities	(16)	0	0
Other, net	(17)	(39)	(14)
Net cash provided by (used in) investing activities	(493)	(507)	(549)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	247	(38)	111
Proceeds from short-term borrowings	117	51	182
Repayments of short-term borrowings	(91)	(78)	(124)
Proceeds from long-term debt	499	561	351
Repayments of long-term debt	(360)	(536)	(77)
Purchases of treasury stock, including related fees	(996)	(805)	(500)
Stock option exercises	(1)	0	1
Common stock dividends	(300)	(280)	(241)
(Distributions to) contributions from noncontrolling interests	(10)	(23)	(27)
Other, net	(40)	(17)	(27)
Net cash provided by (used in) financing activities	(935)	(1,165)	(351)
Exchange rate effects on cash and cash equivalents	(2)	(23)	35
Net increase (decrease) in cash and cash equivalents	24	(137)	(62)
Cash and cash equivalents as of beginning of period	439	576	638
Cash and cash equivalents as of end of period	$ 463	$ 439	$ 576