Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Cash Flows [Abstract]
Net income from continuing operations	$ 1,481	$ 1,126
Adjustments to reconcile net income from continuing operations to net cash flows (used in) provided by operating activities:
Depreciation and amortization	1,034	1,014
Deferred income tax benefit	(329)	(601)
Stock compensation cost	100	103
Net periodic pension and other postretirement income	(388)	(360)
Change in:
Accounts receivable	(962)	556
Contract assets	(1,198)	(219)
Inventory	(720)	(587)
Other current assets	(526)	(281)
Accounts payable and accrued liabilities	490	(316)
Contract liabilities	223	(50)
Other operating activities, net	(68)	91
Net cash flows (used in) provided by operating activities from continuing operations	(863)	476
Investing Activities:
Capital expenditures	(520)	(439)
Dispositions of businesses, net of cash transferred	0	35
Customer financing assets receipts (payments), net	28	(19)
Increase in other intangible assets	(154)	(82)
Payments from settlements of derivative contracts, net	(13)	(33)
Other investing activities, net	80	20
Net cash flows used in investing activities from continuing operations	(579)	(518)
Financing Activities:
Issuance of long-term debt	2,971	0
Change in commercial paper, net (Note 8)	(427)	0
Change in other short-term borrowings, net	22	6
Dividends paid on common stock	(790)	(745)
Repurchase of common stock	(562)	(743)
Other financing activities, net	(118)	(263)
Net cash flows provided by (used in) financing activities from continuing operations	1,096	(1,745)
Effect of foreign exchange rate changes on cash and cash equivalents	1	15
Net decrease in cash, cash equivalents and restricted cash	(345)	(1,772)
Cash, cash equivalents and restricted cash, beginning of period	6,291	7,853
Cash, cash equivalents and restricted cash, end of period	5,946	6,081
Less: Restricted cash, included in Other assets, current and Other assets	53	41
Cash and cash equivalents, end of period	$ 5,893	$ 6,040