Acquisitions And Divestitures - Narrative (Details) $ / shares in Units, $ in Millions, $ in Millions		3 Months Ended									5 Months Ended		12 Months Ended
	May 16, 2022 USD ($) business $ / shares	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 AUD ($)	Sep. 30, 2023 USD ($) business $ / shares	Sep. 30, 2022 USD ($) business $ / shares	Sep. 30, 2021 USD ($)
Business Acquisition [Line Items]
Net sales		$ 4,090	$ 3,946	$ 3,756	$ 3,373	$ 3,892	$ 3,465	$ 3,291	$ 3,156				$ 15,165	$ 13,804	$ 12,932
Acquisition/divestiture costs													69	91	0
Interest expense															147
Proceeds from issuance of debt															3,000
Purchases of businesses, net of cash acquired													705	5,702	1,592
Goodwill		$ 14,480				$ 13,946							14,480	13,946	6,967
Disposal group, loss on disposal													$ (13,393)	(486)	0
Percent of consolidated sales		2.00%											2.00%
Proceeds from subordinated interest					$ 15				438				$ 161
Gain from periodic distribution from retained subordinated interest in Vertiv (VRT)									453				161	453	$ 0
Gain from periodic distribution from retained subordinated interest in Vertiv (VRT), net of tax									$ 358				$ 122
Gain from periodic distribution from retained subordinated interest in Vertiv (VRT), net of tax, per diluted share (in dollars per share) | $ / shares									$ 0.60				$ 0.21
Pretax periodic distribution from retained subordinated interest in Vertiv (VRT)													$ 40
Acquisition-Related Costs
Business Acquisition [Line Items]
Acquisition/divestiture costs										$ 159
Interest expense														56
RUSSIAN FEDERATION
Business Acquisition [Line Items]
Disposal group, loss on disposal													(47)	181
Disposal group, loss on disposal, after tax													$ (47)	$ (190)
Disposal group, loss on disposal, net of tax, per diluted share (in dollars per share) | $ / shares													$ 0.08	$ 0.32
RUSSIAN FEDERATION | Operations
Business Acquisition [Line Items]
Disposal group, loss on disposal														$ 36
RUSSIAN FEDERATION | Other Deductions
Business Acquisition [Line Items]
Disposal group, loss on disposal														145
RUSSIAN FEDERATION | Restructuring Costs
Business Acquisition [Line Items]
Disposal group, loss on disposal														10
AspenTech
Business Acquisition [Line Items]
Noncontrolling interest, ownership percentage	45.00%
AspenTech
Business Acquisition [Line Items]
Number of businesses contributed | business	2
Cash contribution to AspenTech shareholders	$ 6,000
Percentage of voting interest acquired	55.00%
Proceeds from noncontrolling interests	$ 5,900
Adjustments to additional paid in capital	$ 550
Approximate per share payout (in dollars per share) | $ / shares	$ 87.69
Cash remaining on balance sheet	$ 168
Net sales													$ 752	356
Acquisition/divestiture costs														91
Goodwill	7,225
Goodwill, expected tax deductible amount	$ 34
Heritage AspenTech
Business Acquisition [Line Items]
Acquisition/divestiture costs														$ 68
Other Segment Transactions
Business Acquisition [Line Items]
Number of businesses acquired | business													2
Purchases of businesses, net of cash acquired													$ 705
Goodwill		$ 429											429
Goodwill, expected tax deductible amount		0											0
Identifiable intangible assets		$ 314											$ 314
Intangible assets, weighted average useful life													9 years
Micromine
Business Acquisition [Line Items]
Purchase price											$ 623	$ 900
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Number of businesses acquired | business														3
Purchases of businesses, net of cash acquired														$ 130
Annualized sales														$ 40
Series of Individually Immaterial Business Acquisitions | Control Systems & Software
Business Acquisition [Line Items]
Number of businesses acquired | business														2
Series of Individually Immaterial Business Acquisitions | AspenTech
Business Acquisition [Line Items]
Number of businesses acquired | business														1