CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 1,556,000,000	$ 1,280,000,000	$ 2,992,000,000	$ 2,732,000,000
Other comprehensive income (loss), net of tax
Foreign exchange translation adjustment	(191,000,000)	(79,000,000)	14,000,000	12,000,000
Actuarial (gains) losses recognized	0	3,000,000	0	5,000,000
Prior service (credit) cost recognized	(20,000,000)	(19,000,000)	(39,000,000)	(37,000,000)
Pension and other postretirement benefits adjustments	(20,000,000)	(16,000,000)	(39,000,000)	(32,000,000)
Cash flow hedges recognized in other comprehensive income (loss)	10,000,000	34,000,000	48,000,000	2,000,000
Less: Reclassification adjustment for gains (losses) included in net income	7,000,000	(13,000,000)	39,000,000	(31,000,000)
Changes in fair value of cash flow hedges	3,000,000	47,000,000	9,000,000	33,000,000
Other comprehensive income (loss), net of tax	(208,000,000)	(48,000,000)	(16,000,000)	13,000,000
Comprehensive income	1,348,000,000	1,232,000,000	2,976,000,000	2,745,000,000
Less: Comprehensive income attributable to the noncontrolling interest	13,000,000	5,000,000	37,000,000	23,000,000
Comprehensive income attributable to Honeywell	$ 1,335,000,000	$ 1,227,000,000	$ 2,939,000,000	$ 2,722,000,000