Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 981	$ 1,303
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	466	459
Company pension and postretirement contributions	(27)	(42)
Company pension and postretirement expense	37	43
Stock-based compensation expense	135	135
Deferred income taxes	(93)	(49)
Changes in assets and liabilities
Accounts receivable	(73)	(189)
Inventories	91	(319)
Accounts payable	36	261
Accrued income taxes (current and long-term)	(37)	179
Other — net	(241)	(770)
Net cash provided by (used in) operating activities	1,275	1,011
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(475)	(424)
Proceeds from sale of PP&E and other assets	3	56
Purchases of marketable securities and investments	(364)	(125)
Proceeds from maturities and sale of marketable securities and investments	450	217
Proceeds from sale of businesses, net of cash sold	0	13
Net cash provided by (used in) investing activities	(386)	(263)
Cash Flows from Financing Activities
Change in short-term debt — net	0	(5)
Repayment of debt (maturities greater than 90 days)	(1,150)	(579)
Proceeds from debt (maturities greater than 90 days)	1,107	0
Purchases of treasury stock	(29)	(773)
Proceeds from issuance of treasury stock pursuant to stock option and benefit plans	187	164
Dividends paid to shareholders	(827)	(852)
Other — net	(4)	(9)
Net cash provided by (used in) financing activities	(716)	(2,054)
Effect of exchange rate changes on cash and cash equivalents	(4)	(11)
Net increase (decrease) in cash and cash equivalents	169	(1,317)
Cash and cash equivalents at beginning of year	3,655	4,564
Cash and cash equivalents at end of period	$ 3,824	$ 3,247