EMPLOYEE BENEFIT PLANS (Tables) - Qualified Defined Benefit [Member]

12 Months Ended

Dec. 31, 2015

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Assumptions Used [Table Text Block]

Weighted average assumptions used to determine benefit obligations:

	2015	2014
Discount rates (a)	4.55% to 4.69%	4.20%
Rate of compensation increases(a)	2.06% to 2.65%	2.85% to 3.91%

^(a)  Varies by plan and related work group.

Weighted average assumptions used to determine net periodic benefit cost:

	2015	2014	2013
Discount rate	4.20%	4.85%	3.95%
Expected return on plan assets	6.50%	6.75%	7.25%
Rate of compensation increases(a)	2.85% to 3.91%	2.90% to 3.93%	3.05% to 4.02%

^(a)  Varies by plan and related work group.

Schedule of Allocation of Plan Assets [Table Text Block]

The asset allocation of the funds in the qualified defined-benefit plans, by asset category, is as follows: 

	2015		2014
Asset category:
Domestic equity securities	28	%	33	%
Non-U.S. equity securities	12	%	14	%
Fixed income securities	55	%	53	%
Real estate	5	%	—	%
Plan assets	100	%	100	%

Plan asset by fund category (in millions):

	2015		2014		Fair Value Hierarchy
Fund type:
U.S. equity market fund	491		634		(a)
Non-U.S. equity fund	208		272		(a)
Credit bond index fund	953		190		(a)
Government/credit bond index fund	—		821		(a)
Plan assets in common commingled trusts	$	1,652	$	1,917
Real estate	85		—		Level 3
Total plan assets	$	1,737	$	1,917

Target allocations for the primary asset classes based on current funded status are approximately: 

Domestic equities:	21% - 33%
Non-U.S. equities:	7% - 17%
Fixed income:	48% - 67%
Real estate:	0% - 8%

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Changes in our Level 3 plan assets for the year ended December 31, 2015 included:

Asset Category	December 31, 2014 Balance		Net Realized and Unrealized Gains/Losses	Net Purchases, Issuances and Settlements	Net Transfers Into/(Out of) Level 3	December 31, 2015 Balance
Real Estate	$	—	5	80	—	$	85

Schedule of Net Funded Status [Table Text Block]

The following table sets forth the status of the qualified defined-benefit pension plans (in millions):

	2015			2014
Projected benefit obligation (PBO)
Beginning of year	$	2,050		$	1,709
Service cost	41			33
Interest cost	84			81
Plan settlement	(62		)	—
Actuarial (gain) loss	(140		)	298
Benefits paid	(75		)	(71		)
End of year	$	1,898		$	2,050
Plan assets at fair value
Beginning of year	$	1,917		$	1,769
Actual return on plan assets	(43		)	219
Employer contributions	—			—
Plan settlement	(62		)	—
Benefits paid	(75		)	(71		)
End of year	$	1,737		$	1,917
Funded status (unfunded)	$	(161	)	$	(133	)
Percent funded	92		%	94		%

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

The amounts recognized in the consolidated balance sheets (in millions): 

	2015			2014
Accrued benefit liability-long term	$	173		$	133
Plan assets-long term (within noncurrent Other Assets)	(12		)	—
Total liability recognized	$	161		$	133

The amounts not yet reflected in net periodic benefit cost and included in AOCL:

	2015			2014
Prior service credit	$	(11	)	$	(12	)
Net loss	499			514
Amount recognized in AOCL (pretax)	$	488		$	502

Schedule of Net Benefit Costs [Table Text Block]

Net pension expense for the qualified defined-benefit plans included the following components (in millions): 

	2015			2014			2013
Service cost	$	41		$	33		$	46
Interest cost	84			81			73
Expected return on assets	(122		)	(117		)	(111		)
Amortization of prior service cost	(1		)	(1		)	(1		)
Recognized actuarial loss	26			13			43
Settlement expense (special item)	14			—			—
Net pension expense	$	42		$	9		$	50

Schedule of Expected Benefit Payments [Table Text Block]

Future benefits expected to be paid over the next ten years under the qualified defined-benefit pension plans from the assets of those plans (in millions): 

2016	$	77
2017	86
2018	93
2019	96
2020	107
2021 - 2024	613