DEBT (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2016	Aug. 08, 2016	Dec. 31, 2015	Nov. 12, 2014	Oct. 17, 2012
Long-Term Debt [Line Items]
Long Term Debt	$ 2,259			$ 2,102
Fair Value Adjustment to Debt	7			8
Long Term Debt Current	3			3
Long Term Debt Noncurrent	2,256			2,099
Line Of Credit Facility Maximum Borrowing Capacity						$ 800
Short-term debt	$ 1			$ 1
Typical term of borrowing facilities	1 year
Short-term Debt, Weighted Average Interest Rate	0.00%
line of credit facility, uncommitted incremental borrowings	$ 600
Senior Notes Due 2016
Long-Term Debt [Line Items]
Debt Instrument Face Amount								$ 650
Repayments of Debt	$ 158	$ 242	$ 250
Senior Notes Due 2019
Long-Term Debt [Line Items]
Notes Payable, Fair Value Disclosure, Par Value	113.00%			114.00%
Long Term Debt	$ 143			$ 143
Debt Instrument Face Amount								350
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	9.00%			9.00%
Repayments of Debt		$ 105	$ 100
Senior Notes Due 2022
Long-Term Debt [Line Items]
Notes Payable, Fair Value Disclosure, Par Value	104.00%			104.00%
Long Term Debt	$ 597			$ 596
Debt Instrument Face Amount								600
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.20%			4.20%
Debt Instrument, Interest Rate, Stated Percentage	0.00%
Senior Notes Due 2024
Long-Term Debt [Line Items]
Notes Payable, Fair Value Disclosure, Par Value	103.00%			102.00%
Long Term Debt	$ 391			$ 391
Debt Instrument Face Amount							$ 400
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.20%			4.20%
senior notes due 2026
Long-Term Debt [Line Items]
Notes Payable, Fair Value Disclosure, Par Value	97.00%			95.00%
Long Term Debt	$ 395			$ 395
Debt Instrument Face Amount					$ 400
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.40%			3.40%
Senior Notes Due 2036
Long-Term Debt [Line Items]
Notes Payable, Fair Value Disclosure, Par Value	123.00%			118.00%
Long Term Debt	$ 536			$ 536
Debt Instrument Face Amount								$ 540
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	7.00%			7.00%
Letter Of Credit Under Receivables Purchase Agreement
Long-Term Debt [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 90
Long Term Debt	158			$ 0
Line Of Credit Facility Maximum Borrowing Capacity	250
Line Of Credit Facility Amount Outstanding	158
Letters of Credit Outstanding, Amount	2
Senior Revolving Credit Facility B
Long-Term Debt [Line Items]
Line of Credit Facility, Current Borrowing Capacity	791
Line Of Credit Facility Amount Outstanding	0
Letters of Credit Outstanding, Amount	9
Capital Lease Obligations
Long-Term Debt [Line Items]
Long Term Debt	$ 32			$ 33