Statement of Consolidated Cash Flows (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Operating activities
Net income	$ 95	$ 161	$ 161	$ 424
Adjustments to reconcile net income to cash used for operations:
Depreciation and amortization			407	427
Deferred income taxes			(36)	95
Restructuring and other charges			630	20
Net loss from investing activities—asset sales			6	7
Net periodic pension benefit cost (F)			87	100
Stock-based compensation			44	43
Other			15	61
Changes in assets and liabilities, excluding effects of acquisitions, divestitures, and foreign currency translation adjustments:
(Increase) in receivables			(957)	(1,020)
(Increase) in inventories			(92)	(184)
Decrease (increase) in prepaid expenses and other current assets			17	(3)
(Decrease) increase in accounts payable, trade			(119)	257
(Decrease) in accrued expenses			(90)	(96)
Increase in taxes, including income taxes			92	63
Pension contributions			(217)	(288)
(Increase) in noncurrent assets			(12)	(33)
(Decrease) in noncurrent liabilities			(36)	(82)
Cash used for operations			(100)	(209)
Financing Activities
Net change in short-term borrowings (original maturities of three months or less)			0	3
Additions to debt (original maturities greater than three months)			300	450
Payments on debt (original maturities greater than three months)			(303)	(952)
Premiums paid on early redemption of debt			0	(17)
Proceeds from exercise of employee stock options			19	15
Dividends paid to shareholders			(48)	(89)
Repurchase of common stock (H)			(1,100)	0
Other			(12)	(19)
Cash used for financing activities			(1,144)	(609)
Investing Activities
Capital expenditures			(415)	(497)
Proceeds from the sale of assets and businesses (Q)			27	7
Sales of investments			47	9
Cash receipts from sold receivables (K)			630	693
Other			(1)	(1)
Cash provided from investing activities			288	211
Effect of exchange rate changes on cash, cash equivalents and restricted cash			(2)	(4)
Net change in cash, cash equivalents and restricted cash			(958)	(611)
Cash, cash equivalents and restricted cash at beginning of year			2,282	2,153	$ 2,153
Cash, cash equivalents and restricted cash at end of period	$ 1,324	$ 1,542	$ 1,324	$ 1,542	$ 2,282