Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income	$ 1,708	$ 2,201
Adjustments to net income:
Depreciation	265	200
Amortization of capitalized software	16	14
Stock compensation	104	74
Gains on sales of assets	0	(2)
Deferred taxes	(8)	(1)
Increase (decrease) from changes in:
Accounts receivable	18	(94)
Inventories	(531)	(150)
Prepaid expenses and other current assets	(4)	21
Accounts payable and accrued expenses	(124)	11
Accrued compensation	(407)	(388)
Income taxes payable	185	284
Changes in funded status of retirement plans	6	21
Other	(68)	(47)
Cash flows from operating activities	1,160	2,144
Cash flows from investing activities
Capital expenditures	(982)	(443)
Proceeds from asset sales	1	2
Purchases of short-term investments	(3,013)	(3,988)
Proceeds from short-term investments	4,026	2,774
Other	(4)	(13)
Cash flows from investing activities	28	(1,668)
Cash flows from financing activities
Proceeds from issuance of long-term debt	1,397	0
Dividends paid	(1,125)	(1,063)
Stock repurchases	(103)	(589)
Proceeds from common stock transactions	85	57
Other	(15)	(7)
Cash flows from financing activities	239	(1,602)
Net change in cash and cash equivalents	1,427	(1,126)
Cash and cash equivalents at beginning of period	3,050	4,631
Cash and cash equivalents at end of period	$ 4,477	$ 3,505