Acquisitions and Divestitures - Narrative (Details) $ in Millions			1 Months Ended							12 Months Ended
	Jun. 30, 2025 USD ($)	Sep. 12, 2022 USD ($)	Nov. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Oct. 31, 2022 USD ($) tranche	Sep. 30, 2022 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Sep. 12, 2022 £ / shares	Sep. 12, 2022 USD ($)
Business Combination [Line Items]
Interest expense										$ 409	$ 506	$ 574
Proceeds from sale of businesses										$ 623	$ 78	473
Composites And Fuel Containment Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Diversified Industrial
Business Combination [Line Items]
Proceeds from sale of businesses			$ 555
Pre-tax gain (loss) related to divestiture			241
Non-Core Filtration Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Diversified Industrial
Business Combination [Line Items]
Proceeds from sale of businesses			66
Pre-tax gain (loss) related to divestiture			$ 11
Filter Resources Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Diversified Industrial
Business Combination [Line Items]
Proceeds from sale of businesses				$ 37
Pre-tax gain (loss) related to divestiture				$ 12
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]				Gain (Loss) on Disposition of Business and Assets
MicroStrain Sensing Systems Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Diversified Industrial
Business Combination [Line Items]
Proceeds from sale of businesses					$ 37
Pre-tax gain (loss) related to divestiture					$ 13
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]					Gain (Loss) on Disposition of Business and Assets
French Aerospace Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Aerospace Systems
Business Combination [Line Items]
Proceeds from sale of businesses							$ 27
Pre-tax gain (loss) related to divestiture							$ (12)
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]							Gain (Loss) on Disposition of Business and Assets
Aircraft Wheel and Brake Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Aerospace Systems
Business Combination [Line Items]
Proceeds from sale of businesses									$ 443
Pre-tax gain (loss) related to divestiture									$ 374
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]									Gain (Loss) on Disposition of Business and Assets
Curtis Instruments, Inc
Business Combination [Line Items]
Aggregate cash purchase price, pending acquisition	$ 1,000
Meggitt plc
Business Combination [Line Items]
Price per share of stock acquired (in pound sterling per share) | £ / shares														£ 8
Aggregate cash purchase price		$ 7,200
Aggregate annual sales for businesses acquired, for their most recent fiscal year prior to acquisition		$ 2,100
Operating lease right of use assets															$ 115
Finance lease right-of-use assets															91
Operating lease liability															116
Finance lease liability															90
Operating lease liability, current															18
Finance lease liability, current															1
Liabilities assumed, environmental matters															142
Net sales, from date of acquisition												2,100
Operating income from date of acquisition												23
Acquisition-related transaction costs												115
Acquisition-relate nonrecurring adjustments												$ 199	$ 654
Meggitt plc | Other Accrued Liabilities, Current
Business Combination [Line Items]
Liabilities assumed, environmental matters															102
Meggitt plc | Private Placement Notes
Business Combination [Line Items]
Debt assumed, private placement notes															$ 900
Repayments of debt						$ 600		$ 300
Number of tranches | tranche								2
Interest expense						$ 10
Meggitt plc | Minimum | Private Placement Notes
Business Combination [Line Items]
Interest rate															2.78%
Meggitt plc | Maximum | Private Placement Notes
Business Combination [Line Items]
Interest rate															3.60%
Meggitt plc | Customer Relationships
Business Combination [Line Items]
Intangible assets acquired															$ 4,200
Weighted average useful life of intangible assets (in years)		21 years
Meggitt plc | Technology
Business Combination [Line Items]
Intangible assets acquired															1,100
Weighted average useful life of intangible assets (in years)		22 years
Meggitt plc | Trade names
Business Combination [Line Items]
Intangible assets acquired															$ 303
Weighted average useful life of intangible assets (in years)		18 years