Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 256	$ 374
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(123)	(25)
Pension and postretirement benefit plan adjustments	1	9
Change in unrealized cash flow hedging	0	3
Other comprehensive income (loss), net of tax	(122)	(13)
Comprehensive income (loss), net of tax	134	361
Less: Comprehensive (income) loss attributable to noncontrolling interest	(17)	(14)
Comprehensive income attributable to Otis Worldwide Corporation	$ 117	$ 347