DEBT (Long-term Debt, Net of Unamortized Discounts or Premiums) (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Debt Instrument [Line Items]
Weighted average interest rate on long-term debt	4.41%	4.31%
Long-term debt	$ 1,797	$ 2,096
Less: Current maturities of long-term debt	0	(300)
Long-term debt, noncurrent	$ 1,797	$ 1,796
Senior Unsecured Long-Term Notes and Debentures; 3.55%, $300 Due November 2015 [Member]
Debt Instrument [Line Items]
Weighted average interest rate on long-term debt	3.55%	3.55%
Face value	$ 300	$ 300
Long-term debt	$ 0	$ 300
Senior Unsecured Long-Term Notes and Debentures; 5.95%, $400 Due October 2017 [Member]
Debt Instrument [Line Items]
Weighted average interest rate on long-term debt	5.95%	5.95%
Face value	$ 400	$ 400
Long-term debt	$ 400	$ 399
Senior Unsecured Long-Term Notes and Debentures; 3.80%, $300 Due November 2021 [Member]
Debt Instrument [Line Items]
Weighted average interest rate on long-term debt	3.80%	3.80%
Face value	$ 300	$ 300
Long-term debt	$ 298	$ 298
Senior Unsecured Long-Term Notes and Debentures; 3.05%, $600 Due November 2022 [Member]
Debt Instrument [Line Items]
Weighted average interest rate on long-term debt	3.05%	3.05%
Face value	$ 600	$ 600
Long-term debt	$ 599	$ 599
Senior Unsecured Long-Term Notes and Debentures; 3.50%, $500 Due December 2024 [Member]
Debt Instrument [Line Items]
Weighted average interest rate on long-term debt	3.50%	3.50%
Face value	$ 500	$ 500
Long-term debt	$ 500	$ 500