FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Schedule of Assets and Liabilities for Fair Value Disclosure) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 492	$ 871
Total assets	6,441	6,213
Total liabilities	5,503	5,305
Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	42	1
Derivative liabilities	1	5
Total assets	490	849
Total liabilities	2,783	2,780
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	42	1
Derivative liabilities	1	5
Total other assets in the fair value hierarchy	490	849
Total other liabilities in the fair value hierarchy	2,944	3,051
Other Current Assets | Fair Value, Inputs, Level 1 | Reported Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3	0
Other Current Assets | Fair Value, Inputs, Level 1 | Estimate of Fair Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3	0
Other Current Assets | Fair Value, Inputs, Level 2 | Reported Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2	0
Other Current Assets | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2	0
Other Assets | Fair Value, Inputs, Level 2 | Reported Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Other Assets | Fair Value, Inputs, Level 2 | Reported Value Measurement | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	37	1
Other Assets | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Other Assets | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	37	1
Other Assets | Trust Assets for nonqualified deferred compensation plans | Fair Value, Inputs, Level 1 | Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trust assets for nonqualified deferred compensation plans	131	100
Other Assets | Trust Assets for nonqualified deferred compensation plans | Fair Value, Inputs, Level 1 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trust assets for nonqualified deferred compensation plans	131	100
Accounts Payable and Accrued Liabilities | Fair Value, Inputs, Level 1 | Reported Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	1
Accounts Payable and Accrued Liabilities | Fair Value, Inputs, Level 1 | Estimate of Fair Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	1
Accounts Payable and Accrued Liabilities | Fair Value, Inputs, Level 2 | Reported Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	3
Accounts Payable and Accrued Liabilities | Fair Value, Inputs, Level 2 | Reported Value Measurement | Foreign Exchange Forward Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	1	1
Accounts Payable and Accrued Liabilities | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	3
Accounts Payable and Accrued Liabilities | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Foreign Exchange Forward Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	1	1
Cash and Cash Equivalents | Fair Value, Inputs, Level 1 | Reported Value Measurement | Investments, including money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	213	584
Cash and Cash Equivalents | Fair Value, Inputs, Level 1 | Estimate of Fair Value Measurement | Investments, including money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	213	584
Cash and Cash Equivalents | Fair Value, Inputs, Level 2 | Reported Value Measurement | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	146	165
Cash and Cash Equivalents | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	146	165
Current maturities of long-term debt and Long-term debt | Fair Value, Inputs, Level 2 | Reported Value Measurement | Long-term Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current maturities of long-term debt and Long-term debt	2,783	2,780
Current maturities of long-term debt and Long-term debt | Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement | Long-term Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current maturities of long-term debt and Long-term debt	$ 2,944	$ 3,051