Accumulated Other Comprehensive Income (Tables) (Loss)

12 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

A summary of the changes in each component of Accumulated other comprehensive (loss) income, net of tax is provided below:

(dollars in millions)	Foreign Currency Translation		Defined Benefit Pension and Postretirement Plans		Unrealized Hedging (Losses) Gains		Accumulated Other Comprehensive (Loss) Income
Balance at December 31, 2018	$	(3,442)	$	(5,718)	$	(173)	$	(9,333)
Other comprehensive income (loss) before reclassifications, net	280		(584)		(33)		(337)
Amounts reclassified, pre-tax	2		170		51		223
Tax benefit (expense)	(43)		97		(11)		43
ASU 2018-02 adoption impact	(8)		(737)		—		(745)
Balance at December 31, 2019	$	(3,211)	$	(6,772)	$	(166)	$	(10,149)
Other comprehensive income before reclassifications, net	609		1,842		181		2,632
Amounts reclassified, pre-tax	—		373		82		455
Tax benefit (expense)	25		(510)		(62)		(547)
Separation of Carrier and Otis, net of tax	3,287		584		4		3,875
Balance at December 31, 2020	$	710	$	(4,483)	$	39	$	(3,734)
Other comprehensive income (loss) before reclassifications, net	(647)		3,210		(226)		2,337
Amounts reclassified, pre-tax	—		258		(28)		230
Tax benefit (expense)	(14)		(813)		79		(748)
Balance at December 31, 2021	$	49	$	(1,828)	$	(136)	$	(1,915)