CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 6,230,000,000	$ 6,828,000,000	$ 1,588,000,000
Other Comprehensive Income (Loss), Net Of Tax [Abstract]
Foreign exchange translation adjustment	143,000,000	(685,000,000)	(37,000,000)
Actuarial gains (losses) recognized	162,000,000	(602,000,000)	753,000,000
Prior service credit (cost) recognized	1,000,000	2,000,000	(59,000,000)
Prior service credit recognized during year	(79,000,000)	(74,000,000)	(70,000,000)
Actuarial (gains) losses recognized during year	16,000,000	35,000,000	83,000,000
Settlements and curtailments	0	2,000,000	19,000,000
Foreign exchange translation and other	(14,000,000)	31,000,000	(49,000,000)
Pensions and other postretirement benefit adjustments	86,000,000	(606,000,000)	677,000,000
Cash flow hedges recognized in other comprehensive income	103,000,000	89,000,000	(101,000,000)
Less: Reclassification adjustment for gains (losses) included in net income	92,000,000	4,000,000	60,000,000
Changes in fair value of cash flow hedges	11,000,000	85,000,000	(161,000,000)
Other comprehensive income (loss), net of tax	240,000,000	(1,206,000,000)	479,000,000
Comprehensive income	6,470,000,000	5,622,000,000	2,067,000,000
Less: Comprehensive income attributable to the noncontrolling interest	82,000,000	53,000,000	51,000,000
Comprehensive income attributable to Honeywell	$ 6,388,000,000	$ 5,569,000,000	$ 2,016,000,000