STOCKHOLDERS' EQUITY - Dividends (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Jun. 24, 2018	Jun. 30, 2019	Jun. 24, 2018
Dividends Payable [Line Items]
Cash dividends paid and unpaid, amount		$ 1,249	$ 572	$ 1,872	$ 1,145
Cash dividends paid per common share (in dollars per share)		$ 2.20	$ 2.00	$ 4.40	$ 4.00
Cash dividends declared (in dollars per share)		$ 4.40	$ 2.00	$ 6.60	$ 4.00
Forecast
Dividends Payable [Line Items]
Cash dividends paid and unpaid, amount	$ 624
Cash dividends paid per common share (in dollars per share)	$ 2.20