Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations attributable to common shareowners	$ (19)	$ (33)	$ (410)
Income (loss) from discontinued operations	(30)	(10)	(216)
Income tax expense (benefit) from discontinued operations	(11)	23	151
Income (loss) from discontinued operations	(19)	(33)	(367)
Less: Noncontrolling interest in subsidiaries’ earnings from discontinued operations	0	0	43
Net cash used in operating activities	0	(71)	(728)
Net cash used in investing activities	0	0	(241)
Net cash provided by (used in) financing activities	0	71	(1,414)
Otis [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations attributable to common shareowners	0	0	187
Research and development	0	0	38
Selling, general and administrative expense	0	0	450
Other income (expense), net	0	0	(65)
Non-operating expense (income), net	0	0	3
Income (loss) from discontinued operations	0	0	340
Income tax expense (benefit) from discontinued operations	0	0	116
Income (loss) from discontinued operations	0	0	224
Less: Noncontrolling interest in subsidiaries’ earnings from discontinued operations	0	0	37
Otis [Member] | Products [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales	0	0	1,123
Costs of Goods Sold	0	0	913
Otis [Member] | Services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales	0	0	1,843
Costs of Goods Sold	0	0	1,157
Carrier [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations attributable to common shareowners	0	0	196
Research and development	0	0	98
Selling, general and administrative expense	0	0	669
Other income (expense), net	0	0	(30)
Non-operating expense (income), net	0	0	17
Income (loss) from discontinued operations	0	0	304
Income tax expense (benefit) from discontinued operations	0	0	102
Income (loss) from discontinued operations	0	0	202
Less: Noncontrolling interest in subsidiaries’ earnings from discontinued operations	0	0	6
Carrier [Member] | Products [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales	0	0	3,143
Costs of Goods Sold	0	0	2,239
Carrier [Member] | Services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales	0	0	741
Costs of Goods Sold	0	0	527
Separation Related Transactions [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations attributable to common shareowners	(19)	(33)	(793)
Selling, general and administrative expense	0	10	151
Other income (expense), net	(30)	0	(709)
Income (loss) from discontinued operations	(30)	(10)	(860)
Income tax expense (benefit) from discontinued operations	$ (11)	$ 23	$ (67)