CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 5,740	$ 5,672	$ 4,967
Other comprehensive income (loss), net of tax
Foreign exchange translation adjustment	200	(274)	(372)
Actuarial gains (losses) recognized	350	(468)	(452)
Prior service credit recognized	(10)	0	0
Prior service credit recognized during year	(17)	(48)	(64)
Actuarial losses recognized during year	87	118	454
Foreign exchange translation and other	3	(9)	(171)
Pension and other postretirement benefit adjustments	413	(407)	(233)
Changes in fair value of available for sale investments	1	5	(8)
Cash flow hedges recognized in other comprehensive income (loss)	17	60	71
Less: Reclassification adjustment for gains included in net income	16	49	56
Changes in fair value of cash flow hedges	1	11	15
Total net current period other comprehensive income (loss)	615	(665)	(598)
Comprehensive income	6,355	5,007	4,369
Less: Comprehensive income (loss) attributable to the noncontrolling interest	6	9	(17)
Comprehensive income attributable to Honeywell	$ 6,349	$ 4,998	$ 4,386