FINANCING ARRANGEMENTS - Senior Secured Notes (Details) - USD ($)		6 Months Ended
Mar. 21, 2017	Jun. 30, 2017
Debt Instrument [Line Items]
Principal amount		$ 6,310,000,000
Redemption price percentage to change in control (as a percent)		101.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate on debt (as a percent)		4.98%
Repayments of Revolving Credit Facility	$ 350,000,000
March 2022 Senior Secured Notes
Debt Instrument [Line Items]
Principal amount	$ 1,250,000,000
Stated interest rate on debt (as a percent)	6.50%	6.50%
Redemption price percentage (as a percent)		100.00%
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings		40.00%
March 2024 Senior Secured Notes
Debt Instrument [Line Items]
Principal amount	$ 2,000,000,000
Stated interest rate on debt (as a percent)	7.00%	7.00%
Redemption price percentage (as a percent)		100.00%
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings		40.00%
Senior Unsecured Notes
Debt Instrument [Line Items]
Principal amount	$ 1,100,000,000
Stated interest rate on debt (as a percent)	6.75%
Repurchased principle amount	$ 1,100,000,000
Redemption price percentage to change in control (as a percent)		101.00%

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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Face (par) amount of the original debt instrument that was repurchased.

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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