EMPLOYEE STOCK BENEFIT PLANS (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 50	$ 46	$ 99	$ 95
Income tax benefit	17	18	33	34
Unrecognized compensation cost	367		367
Weighted-average period over which unrecognized compensation cost is expected to be recognized			2 years 7 months 6 days
Employee Stock Option [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense		1		1
Restricted Stock [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	19	19	38	37
Number of shares granted			1.7
Weighted average grant date fair value of grants during the period			$ 52.58
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years 0 months 0 days
Market share units [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	8	8	17	16
Number of shares granted			0.9
Weighted average grant date fair value of grants during the period			$ 55.44
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years 0 months 0 days
Performance share units [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 23	$ 18	$ 44	$ 41
Number of shares granted			2.3
Weighted average grant date fair value of grants during the period			$ 55.17
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years 0 months 0 days