PENSION AND OTHER POSTRETIREMENT BENEFITS - Fair Value of Deferred Compensation Plans (Details) - USD ($) $ in Millions	Jun. 30, 2017	Jul. 01, 2016	Jul. 03, 2015
Assets
Fair value of plan assets	$ 5,133	$ 4,489	$ 4,757
Investments Measured at NAV assets	920	$ 987
Level 1 | Equity securities and mutual funds
Liabilities
Fair value of plan liabilities	46
Level 1 | Equity security
Assets
Fair value of plan assets	37
Estimate of Fair Value Measurement
Assets
Fair value of plan assets	112
Investments Measured at NAV assets	75
Liabilities
Fair value of plan liabilities	126
Estimate of Fair Value Measurement | Equity securities and mutual funds
Liabilities
Fair value of plan liabilities	46
Estimate of Fair Value Measurement | Common/collective trusts and guaranteed investment contracts
Liabilities
Investment measured at NAV liability	80
Estimate of Fair Value Measurement | Equity security
Assets
Fair value of plan assets	37
Estimate of Fair Value Measurement | Corporate-owned life insurance
Assets
Investments Measured at NAV assets	25
Estimate of Fair Value Measurement | Equity fund
Assets
Investments Measured at NAV assets	$ 50