CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net Sales	$ 36,709	$ 41,802	$ 40,534
Costs and Expenses [Abstract]
Cost of products and services sold	24,339	29,046	28,144
Selling, general and administrative expenses	5,519	6,051	6,087
Other (income) expense	(1,065)	(1,149)	(963)
Interest and other financial charges	357	367	316
Cost, operating and non-operating expenses	29,150	34,315	33,584
Income before taxes	7,559	7,487	6,950
Tax expense	1,329	659	5,362
Net income	6,230	6,828	1,588
Less: Net income attributable to the noncontrolling interest	87	63	43
Net income attributable to Honeywell	$ 6,143	$ 6,765	$ 1,545
Earnings per share of common stock - basic	$ 8.52	$ 9.10	$ 2.03
Earnings per share of common stock - assuming dilution	$ 8.41	$ 8.98	$ 2.00
Products [Member]
Income Statement [Abstract]
Net Sales	$ 27,629	$ 32,848	$ 32,317
Costs and Expenses [Abstract]
Cost of products and services sold	19,269	23,634	23,176
Services [Member]
Income Statement [Abstract]
Net Sales	9,080	8,954	8,217
Costs and Expenses [Abstract]
Cost of products and services sold	$ 5,070	$ 5,412	$ 4,968