CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 1,448,000,000	$ 1,606,000,000
Other comprehensive income (loss), net of tax
Foreign exchange translation adjustment	214,000,000	(276,000,000)
Prior service (credit) cost recognized	(22,000,000)	(20,000,000)
Pension and other postretirement benefit adjustments	(22,000,000)	(20,000,000)
Changes in fair value of available for sale investments	(3,000,000)	0
Cash flow hedges recognized in other comprehensive income (loss)	8,000,000	195,000,000
Less: Reclassification adjustment for gains (losses) included in net income	3,000,000	55,000,000
Changes in fair value of effective cash flow hedges	5,000,000	140,000,000
Other comprehensive income (loss), net of tax	194,000,000	(156,000,000)
Comprehensive income	1,642,000,000	1,450,000,000
Less: Comprehensive income attributable to the noncontrolling interest	22,000,000	18,000,000
Comprehensive income attributable to Honeywell	$ 1,620,000,000	$ 1,432,000,000