Acquisitions and Divestitures Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended	9 Months Ended		11 Months Ended		12 Months Ended		27 Months Ended
	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Mar. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2023 USD ($)	Jun. 30, 2023 AUD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Apr. 12, 2023 USD ($) $ / shares	May 16, 2022 USD ($) $ / shares	Sep. 30, 2021 USD ($)
Business Acquisition [Line Items]
Cash and equivalents	$ 9,957,000,000	$ 2,529,000,000		$ 9,957,000,000	$ 2,529,000,000	$ 9,957,000,000			$ 1,804,000,000				$ 2,354,000,000
Net sales	3,946,000,000	3,465,000,000		11,075,000,000	9,912,000,000
Acquisition/divestiture costs	38,000,000	61,000,000		48,000,000	91,000,000
Proceeds from Issuance of Debt			$ 3,000,000,000
Equity value											$ 8,200,000,000
Effective purchase price per share | $ / shares											$ 59.61
Net sales								$ 1,660,000,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	10,576,000,000	0		13,359,000,000	0
Proceeds from subordinated interest				15,000,000	438,000,000
Gain from periodic distribution from retained subordinated interest in Vertiv (VRT)	0	0		0	453,000,000
Gain from periodic distribution from retained subordinated interest in Vertiv (VRT), net of tax					$ 358,000,000
Gain from periodic distribution from retained subordinated interest in Vertiv (VRT), net of tax, per diluted share | $ / shares					$ 0.60
AspenTech
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners												45.00%
Acquisition-related Costs
Business Acquisition [Line Items]
Acquisition/divestiture costs					$ 159,000,000
Interest Expense					56,000,000
Other Nonoperating Income (Expense)
Business Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		130,000,000
Operating Income (Loss)
Business Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		32,000,000
Restructuring Charges
Business Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		9,000,000
RUSSIAN FEDERATION
Business Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ (47,000,000)	162,000,000			162,000,000
(Loss) on sale of business, net of tax		$ 174,000,000
Disposal Group, Gain (loss) on disposal, net of tax, per diluted share | $ / shares	$ (0.08)	$ 0.29
Backlog
Business Acquisition [Line Items]
Intangible assets, weighted average useful life	3 years
Micromine
Business Acquisition [Line Items]
Purchase price						$ 623,000,000	$ 900
AspenTech
Business Acquisition [Line Items]
Cash contribution to AspenTech shareholders									6,000,000,000
Business Acquisition, Percentage of Voting Interests Acquired												55.00%
Proceeds from Noncontrolling Interests									5,900,000,000
Adjustments to Additional Paid in Capital, Other									$ 550,000,000
Approximate per share payout | $ / shares												$ 87.69
Cash and equivalents												$ 168,000,000
Net sales	$ 257,000,000	$ 173,000,000		$ 576,000,000	173,000,000
Acquisition/divestiture costs		$ 61,000,000			$ 91,000,000
Intangibles												4,390,000,000
AspenTech | Backlog
Business Acquisition [Line Items]
Intangibles												$ 310,000,000
Heritage AspenTech
Business Acquisition [Line Items]
Acquisition/divestiture costs			$ 68,000,000
National Instruments
Business Acquisition [Line Items]
Business Acquisition, Share Price | $ / shares											$ 60
Forecast [Member]
Business Acquisition [Line Items]
Pretax periodic distribution from retained subordinated interest										$ 150,000,000
Forecast [Member] | Minimum [Member]
Business Acquisition [Line Items]
Period over which distributions are expected to occur										2 years
Forecast [Member] | Maximum [Member]
Business Acquisition [Line Items]
Period over which distributions are expected to occur										3 years