CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 4,168,000,000	$ 3,486,000,000
Less: Net income attributable to the noncontrolling interest	54,000,000	66,000,000
Net income attributable to Honeywell	4,114,000,000	3,420,000,000
Adjustments to reconcile net income attributable to Honeywell to net cash provided by operating activities:
Depreciation	506,000,000	480,000,000
Amortization	427,000,000	268,000,000
Gain on sale of non-strategic businesses and assets	(95,000,000)	0
Repositioning and other charges	338,000,000	486,000,000
Net payments for repositioning and other charges	(505,000,000)	(652,000,000)
Pension and other postretirement income	(862,000,000)	(633,000,000)
Pension and other postretirement benefit payments	(29,000,000)	(37,000,000)
Stock compensation expense	172,000,000	118,000,000
Deferred income taxes	189,000,000	(289,000,000)
Reimbursement receivables charge	0	350,000,000
Other	(106,000,000)	(369,000,000)
Changes in assets and liabilities, net of the effects of acquisitions and divestitures:
Accounts receivable	(419,000,000)	615,000,000
Inventories	(516,000,000)	(284,000,000)
Other current assets	(324,000,000)	246,000,000
Accounts payable	379,000,000	(460,000,000)
Accrued liabilities	106,000,000	167,000,000
Net cash provided by operating activities	3,375,000,000	3,426,000,000
Cash flows from investing activities:
Expenditures for property, plant and equipment	(614,000,000)	(615,000,000)
Proceeds from disposals of property, plant and equipment	18,000,000	17,000,000
Increase in investments	(1,989,000,000)	(2,371,000,000)
Decrease in investments	1,906,000,000	2,634,000,000
Receipts from Garrett Motion Inc.	375,000,000	0
Receipts (payments) from settlements of derivative contracts	88,000,000	(75,000,000)
Cash paid for acquisitions, net of cash acquired	(1,334,000,000)	0
Proceeds from sales of businesses, net of fees paid	203,000,000	0
Net cash used for investing activities	(1,347,000,000)	(410,000,000)
Cash flows from financing activities:
Proceeds from issuance of commercial paper and other short-term borrowings	3,640,000,000	8,577,000,000
Payments of commercial paper and other short-term borrowings	(3,637,000,000)	(8,512,000,000)
Proceeds from issuance of common stock	171,000,000	163,000,000
Proceeds from issuance of long-term debt	2,509,000,000	10,105,000,000
Payments of long-term debt	(3,355,000,000)	(4,237,000,000)
Repurchases of common stock	(2,499,000,000)	(2,149,000,000)
Cash dividends paid	(1,950,000,000)	(1,921,000,000)
Other	(74,000,000)	(54,000,000)
Net cash provided by (used for) financing activities	(5,195,000,000)	1,972,000,000
Effect of foreign exchange rate changes on cash and cash equivalents	(21,000,000)	(19,000,000)
Net increase (decrease) in cash and cash equivalents	(3,188,000,000)	4,969,000,000
Cash and cash equivalents at beginning of period	14,275,000,000	9,067,000,000
Cash and cash equivalents at end of period	$ 11,087,000,000	$ 14,036,000,000