Business Segment Information - Schedule of Business Segment Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Net Sales	$ 19,850	$ 19,930	$ 19,065
Other Segment Items	15,289	15,643	15,431
Segment Operating Income:	4,347	4,069	3,404
Corporate general and administrative expenses	3,255	3,315	3,354
Interest expense	409	506	574
Other (income) expense, net	(169)	(32)	150
Income before income taxes	4,107	3,595	2,680
Assets	29,494	29,298	29,964
Property Additions	435	400	381
Investment in a joint venture	280	294
Depreciation	354	349	317
Amortization	553	578	501
Long-Lived Assets	2,937	2,876	2,865
North America
Segment Reporting Information [Line Items]
Net Sales	13,406	13,512	12,690
Long-Lived Assets	1,874	1,864	1,828
International
Segment Reporting Information [Line Items]
Net Sales	6,444	6,418	6,375
Long-Lived Assets	1,063	1,012	1,037
Diversified Industrial
Segment Reporting Information [Line Items]
Net Sales	13,665	14,458	14,705
Aerospace Systems
Segment Reporting Information [Line Items]
Net Sales	6,185	5,472	4,360
Investment in a joint venture	226	218	216
Operating Segments
Segment Reporting Information [Line Items]
Segment Operating Income:	4,561	4,287	3,634
Operating Segments | Diversified Industrial
Segment Reporting Information [Line Items]
Net Sales	13,665	14,458	14,705
Other Segment Items	10,545	11,282	11,634
Segment Operating Income:	3,120	3,176	3,071
Assets	15,953	16,174	15,573
Property Additions	310	303	293
Depreciation	228	232	205
Amortization	253	266	268
Operating Segments | Aerospace Systems
Segment Reporting Information [Line Items]
Net Sales	6,185	5,472	4,360
Other Segment Items	4,744	4,361	3,797
Segment Operating Income:	1,441	1,111	563
Assets	12,218	12,016	13,661
Property Additions	88	90	81
Depreciation	114	108	104
Amortization	300	312	233
Corporate
Segment Reporting Information [Line Items]
Corporate general and administrative expenses	214	218	230
Assets	1,323	1,108	730
Property Additions	37	7	7
Depreciation	12	9	8
Amortization	$ 0	$ 0	$ 0