SUBSEQUENT EVENTS (Details) - USD ($)	Jul. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Subsequent Event [Line Items]
Principal amount		$ 24,066,171,000	$ 23,296,581,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased				$ 2,000,000,000.0
2019 Share Repurchase Authorization [Member] | Subsequent Event
Subsequent Event [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	$ 5,000,000,000
Senior Notes Due January 2030 | Senior Notes | Subsequent Event
Subsequent Event [Line Items]
Principal amount	$ 1,000,000,000
Interest rate	5.75%