RETIREMENT PLANS Net Periodic Pension Expense for Qualified and Nonqualified U.S. Defined Benefit Plans (Details) - U.S. Plans - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 41		$ 40	$ 114	$ 120
Interest cost	135		149	449	448
Expected return on plan assets	(199)		(196)	(611)	(588)
Actuarial loss	103		107	293	322
Amortization of prior service cost	11		11	31	33
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	3	$ 439	15	442	15
Net periodic benefit expense	$ 94		$ 126	$ 718	$ 350