DEBT (Narrative) (Detail) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 10, 2014
Debt Instrument [Line Items]
Debt tender premiums paid		$ 211		$ 257	$ 211	$ 257
Debt reductions	[1]	$ 1,172		$ 1,030	$ 1,389	$ 1,039
Debt instrument, interest rate, stated percentage rate range, minimum		4.70%		5.00%	4.70%	5.00%
Original maturity date range, minimum		2018		2018	2015	2018
Debt instrument, interest rate, stated percentage rate range, maximum		9.38%		9.38%	9.38%	9.38%
Pre-tax early debt extinguishment costs		$ 207		$ 262	$ 208	$ 262
Original maturity date range, maximum		2030		2029	2030	2029
Defined benefit plan employer cash contributions in current fiscal year					$ 750	$ 263
Debt and capital lease obligations		$ 9,900			9,900
Debt fair value		10,800			$ 10,800
Three Point Six Five Percentage Fixed Rate Loan [Member] [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt				$ 800
Debt Instrument, Interest Rate, Stated Percentage							3.65%
Debt Instrument, Maturity Date				Jun. 15, 2024
Five Point Zero Percentage Fixed Rate Loan [Member] [Member] [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt		$ 600
Debt Instrument, Interest Rate, Stated Percentage		5.00%			5.00%
Debt Instrument, Maturity Date		Sep. 15, 2035
Three Point Eight Percentage Fixed Rate Loan [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt		$ 700
Debt Instrument, Interest Rate, Stated Percentage		3.80%			3.80%
Debt Instrument, Maturity Date		Jan. 15, 2026
Four Point Eight Percentage Fixed Rate Loan [Member] [Member] [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt				$ 800
Debt Instrument, Interest Rate, Stated Percentage							4.80%
Debt Instrument, Maturity Date				Jun. 15, 2044
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt reductions		$ 1,000	$ 3	$ 957
Debt instrument, interest rate, stated percentage rate range, minimum		4.75%	7.95%	7.95%
Original maturity date range, minimum		2018	2018
Debt instrument, interest rate, stated percentage rate range, maximum		9.38%	9.38%
Pre-tax early debt extinguishment costs		$ 207		$ 262
Original maturity date range, maximum		2022	2019
Five Point One Five Percentage Fixed Rate Loan [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt		$ 700
Debt Instrument, Interest Rate, Stated Percentage		5.15%			5.15%
Debt Instrument, Maturity Date		May 15, 2046
Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				0.90%		0.90%
Proceeds from Issuance of Secured Debt				$ 225
Repayments of Secured Debt				$ 225

[1] Reductions related to notes with interest rates ranging from 4.70% to 9.38% with original maturities from 2018 to 2030 and from 5.00% to 9.38% with original maturities from 2018 to 2029 for the three months ended June 30, 2015 and 2014, respectively, and from 4.70% to 9.38% with original maturities from 2015 to 2030 and from 5.00% to 9.38% with original maturities from 2018 to 2029 for the six months ended June 30, 2015 and 2014, respectively.