Basis of Presentation and Summary of Significant Accounting Policies (Revision Of Consolidated Statements of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended						12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net earnings/(loss)	$ 262	$ 369	$ (11)	$ 367	$ (77)	$ 99	$ 853	$ 331	$ (937)
Adjustments to reconcile net earnings/(loss) to net cash provided by operating activities:
Impairments and (gain)/loss on disposal of assets, net	84	1	541				634	1,246	2,060
Provision for/(benefit from) deferred income taxes							(104)	(40)	14
Provision for bad debts							36	55	23
Change in operating assets and liabilities, net of effects from acquisitions and divestitures:
Increase in trade receivables							(996)	(950)	(1,405)
(Increase)/decrease in inventories							1,115	(412)	(1,204)
Increase in accounts payable							1,824	2,816	3,555
Other accrued liabilities and operating items, net							(433)	(997)	264
Net cash provided by operating activities							3,762	2,844	3,175
Net increase/(decrease) in cash and equivalents							1,057	(669)	1,363
Cash and equivalents at beginning of period			4,076			4,745	4,076	4,745	3,382
Cash and equivalents at end of period							5,133	4,076	4,745
As Reported
Cash flows from operating activities:
Net earnings/(loss)	259	354	6	347	(130)	111		262	(932)
Adjustments to reconcile net earnings/(loss) to net cash provided by operating activities:
Impairments and (gain)/loss on disposal of assets, net	84	1	537					1,250	2,050
Provision for/(benefit from) deferred income taxes								(31)	7
Provision for bad debts								99	68
Change in operating assets and liabilities, net of effects from acquisitions and divestitures:
Increase in trade receivables								(947)	(1,526)
(Increase)/decrease in inventories								(340)	(1,071)
Increase in accounts payable								2,718	3,428
Other accrued liabilities and operating items, net								(967)	293
Net cash provided by operating activities								2,839	3,122
Net increase/(decrease) in cash and equivalents								(674)	1,310
Cash and equivalents at beginning of period			4,043			4,717	4,043	4,717	3,407
Cash and equivalents at end of period								4,043	4,717
Adjustment
Cash flows from operating activities:
Net earnings/(loss)	3	15	(17)	$ 20	$ 53	(12)		69	(5)
Adjustments to reconcile net earnings/(loss) to net cash provided by operating activities:
Impairments and (gain)/loss on disposal of assets, net	$ 0	$ 0	4					(4)	10
Provision for/(benefit from) deferred income taxes								(9)	7
Provision for bad debts								(44)	(45)
Change in operating assets and liabilities, net of effects from acquisitions and divestitures:
Increase in trade receivables								(3)	121
(Increase)/decrease in inventories								(72)	(133)
Increase in accounts payable								98	127
Other accrued liabilities and operating items, net								(30)	(29)
Net cash provided by operating activities								5	53
Net increase/(decrease) in cash and equivalents								5	53
Cash and equivalents at beginning of period			$ 33			$ 28	$ 33	28	(25)
Cash and equivalents at end of period								$ 33	$ 28