EMPLOYEE RETIREMENT PLANS (Details 5) (Qualified, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Retirement Plans
Total Assets at Fair Value	$ 691	$ 659	$ 594
Changes in the fair value of plan level 3 assets
Balance at the beginning of the period	93	78
Purchases	13	25
Sales	(9)	(14)
Unrealized gains (losses)	7	4
Balance at the end of the period	104	93
Assets at Fair Value (Level 1)
Employee Retirement Plans
Total Assets at Fair Value	292	318
Assets at Fair Value (Level 1) | US | Common and Preferred Stocks
Employee Retirement Plans
Total Assets at Fair Value	136	143
Assets at Fair Value (Level 1) | US | Corporate Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	15	15
Assets at Fair Value (Level 1) | US | Government and Other Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	64	79
Assets at Fair Value (Level 1) | US | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value		2
Assets at Fair Value (Level 1) | International | Common and Preferred Stocks
Employee Retirement Plans
Total Assets at Fair Value	50	46
Assets at Fair Value (Level 1) | International | Government and Other Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	24	23
Assets at Fair Value (Level 1) | International | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value	3	10
Level 2
Employee Retirement Plans
Total Assets at Fair Value	295	248
Level 2 | US | Common and Preferred Stocks
Employee Retirement Plans
Total Assets at Fair Value	116	107
Level 2 | US | Corporate Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	33	25
Level 2 | US | Government and Other Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	2	1
Level 2 | US | Common Collective Trust Fund
Employee Retirement Plans
Total Assets at Fair Value	5	3
Level 2 | US | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value	1	2
Level 2 | International | Common and Preferred Stocks
Employee Retirement Plans
Total Assets at Fair Value	15	16
Level 2 | International | Corporate Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	75	61
Level 2 | International | Government and Other Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	27	27
Level 2 | International | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value	21	6
Level 3
Employee Retirement Plans
Total Assets at Fair Value	104	93
Level 3 | US | Private Equity and Hedge Funds
Employee Retirement Plans
Total Assets at Fair Value	59	52
Level 3 | International | Private Equity and Hedge Funds
Employee Retirement Plans
Total Assets at Fair Value	27	24
Level 3 | International | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value	18	17
Total
Employee Retirement Plans
Total Assets at Fair Value	691	659
Total | US | Common and Preferred Stocks
Employee Retirement Plans
Total Assets at Fair Value	252	250
Total | US | Private Equity and Hedge Funds
Employee Retirement Plans
Total Assets at Fair Value	59	52
Total | US | Corporate Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	48	40
Total | US | Government and Other Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	66	80
Total | US | Common Collective Trust Fund
Employee Retirement Plans
Total Assets at Fair Value	5	3
Total | US | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value	1	4
Total | International | Common and Preferred Stocks
Employee Retirement Plans
Total Assets at Fair Value	65	62
Total | International | Private Equity and Hedge Funds
Employee Retirement Plans
Total Assets at Fair Value	27	24
Total | International | Corporate Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	75	61
Total | International | Government and Other Debt Securities
Employee Retirement Plans
Total Assets at Fair Value	51	50
Total | International | Short-Term and other Investments
Employee Retirement Plans
Total Assets at Fair Value	$ 42	$ 33