STATEMENT OF CASH FLOWS (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash:
Cash paid during the period for interest	$ 48	$ 40
Cash paid during the period for income taxes	213	189
Noncash investing and financing activities:
Capital lease and asset retirement obligations incurred	6	22
Noncash purchases (sales) of short- and long-term investments, net		(2)
Property, plant and equipment accrued but unpaid	$ 30	$ 34