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Long-Term Obligations and Other Short-Term Borrowings Long-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Debt Instrument [Line Items]
Accounts payable	$ 23,700	$ 27,128	$ 23,700
Offer as percentage of principal amount		101.00%
Loss on early extinguishment of debt		$ 10	14	$ 16
2.616% Notes due fiscal 2022
Debt Instrument [Line Items]
Repayments of Notes Payable			2
Notes Payable Repurchased	$ 262	572		247
3.41% Notes due fiscal 2027
Debt Instrument [Line Items]
Notes Payable Repurchased				104
4.368% Notes due fiscal 2047
Debt Instrument [Line Items]
Notes Payable Repurchased				35
2.616% Notes, 3.2% Notes, 3.41% Notes, 4.6% Notes, 4.9% Notes and 4.368% Notes [Member]
Debt Instrument [Line Items]
Loss on early extinguishment of debt				(9)
Floating Rate Notes due fiscal 2022
Debt Instrument [Line Items]
Loss on early extinguishment of debt		(10)
Repayments of Notes Payable			40
Notes Payable Repurchased		$ 282		20
2.4% Notes due 2019
Debt Instrument [Line Items]
Notes Payable Repurchased				450
3.2% Notes due 2022
Debt Instrument [Line Items]
Notes Payable Repurchased			$ 238	11
4.6% Notes due 2043
Debt Instrument [Line Items]
Notes Payable Repurchased				6
4.625% Notes due 2020
Debt Instrument [Line Items]
Loss on early extinguishment of debt				(7)
Notes Payable Repurchased				500
4.9% Notes due 2045
Debt Instrument [Line Items]
Notes Payable Repurchased				$ 5

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