Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net earnings (loss)	$ 285	$ 620	$ 1,101
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities
Asset impairments	126	0	81
Depreciation, amortization and accretion	363	298	319
Pension and postretirement net periodic benefit cost	(52)	(113)	(35)
Pension and postretirement contributions	(63)	(223)	(96)
Actuarial (gain) loss on pension and postretirement plans	127	350	(104)
Pension curtailments and settlements, net	(3)	(78)	(52)
Deferred income taxes, net	42	124	344
(Gain) loss on disposition of businesses and assets, net	8	8	(737)
Stock-based compensation	40	46	24
Undistributed earnings in unconsolidated affiliates	(5)	(98)	(39)
Other, net	7	24	13
Operating cash provided by (used in) discontinued operations	(2)	(5)	(4)
Changes in operating assets and liabilities
Trade receivables - third party and affiliates, net	61	23	(23)
Inventories	62	(15)	(81)
Other assets	(17)	20	(110)
Trade payables - third party and affiliates	(111)	(13)	109
Other liabilities	(6)	(6)	52
Net cash provided by (used in) operating activities	862	962	762
Investing Activities
Capital expenditures on property, plant and equipment	(232)	(254)	(277)
Acquisitions, net of cash acquired	(6)	(10)	0
Proceeds from sale of businesses and assets, net	4	0	13
Capital expenditures related to Kelsterbach plant relocation	0	0	(7)
Capital expenditures related to Fairway Methanol LLC	(288)	(424)	(93)
Other, net	(36)	(17)	(58)
Net cash provided by (used in) investing activities	(558)	(705)	(422)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	350	(9)	(11)
Proceeds from short-term borrowings	80	62	177
Repayments of short-term borrowings	(83)	(91)	(123)
Proceeds from long-term debt	0	387	74
Repayments of long-term debt	(24)	(626)	(198)
Purchases of treasury stock, including related fees	(420)	(250)	(164)
Stock option exercises	3	5	9
Series A common stock dividends	(174)	(144)	(83)
Contributions from noncontrolling interests	214	264	0
Other, net	(12)	(13)	(7)
Net cash provided by (used in) financing activities	(66)	(415)	(326)
Exchange rate effects on cash and cash equivalents	(51)	(46)	11
Net increase (decrease) in cash and cash equivalents	187	(204)	25
Cash and cash equivalents as of beginning of period	780	984	959
Cash and cash equivalents as of end of period	$ 967	$ 780	$ 984