BASIS OF PRESENTATION - Intangible Assets Summary (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Other intangible assets
Gross Carrying Amount	$ 2,387	$ 2,334
Accumulated Amortization	(701)	(659)
Net Book Value	1,686	1,675
Capitalized software costs
Other intangible assets
Gross Carrying Amount	1,495	1,456
Accumulated Amortization	(625)	(594)
Net Book Value	870	862
Trade names
Other intangible assets
Gross Carrying Amount	106	106
Net Book Value	106	106
Contracts
Other intangible assets
Gross Carrying Amount	669	653
Accumulated Amortization	(30)	(26)
Net Book Value	639	627
Other
Other intangible assets
Gross Carrying Amount	117	119
Accumulated Amortization	(46)	(39)
Net Book Value	$ 71	$ 80