CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) - Items Included in Cumulative Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Beginning balance			$ (1,393)
Other comprehensive income (loss) before reclassifications			16
Income taxes			(28)
Net other comprehensive income (loss) before reclassifications			(12)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			139
Income taxes			(47)
Net amounts reclassified from cumulative other comprehensive income (loss)			92
Total other comprehensive income (loss)	$ 10	$ (194)	80	$ (171)
Ending balance	(1,313)		(1,313)
Foreign currency translation adjustments
Beginning balance			304
Other comprehensive income (loss) before reclassifications			(78)
Income taxes			0
Net other comprehensive income (loss) before reclassifications			(78)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			0
Income taxes			0
Net amounts reclassified from cumulative other comprehensive income (loss)			0
Total other comprehensive income (loss)			(78)
Ending balance	226		226
Actuarial losses | Pension
Beginning balance			(1,623)
Other comprehensive income (loss) before reclassifications			73
Income taxes			(20)
Net other comprehensive income (loss) before reclassifications			53
Amounts reclassified from cumulative other comprehensive income (loss)(1)			135
Income taxes			(46)
Net amounts reclassified from cumulative other comprehensive income (loss)			89
Total other comprehensive income (loss)			142
Ending balance	(1,481)		(1,481)
Actuarial losses | Other Postretirement Benefits
Beginning balance			(108)
Other comprehensive income (loss) before reclassifications			21
Income taxes			(7)
Net other comprehensive income (loss) before reclassifications			14
Amounts reclassified from cumulative other comprehensive income (loss)(1)			7
Income taxes			(2)
Net amounts reclassified from cumulative other comprehensive income (loss)			5
Total other comprehensive income (loss)			19
Ending balance	(89)		(89)
Prior service credits (costs) | Pension
Beginning balance			(15)
Other comprehensive income (loss) before reclassifications			2
Income taxes			(1)
Net other comprehensive income (loss) before reclassifications			1
Amounts reclassified from cumulative other comprehensive income (loss)(1)			3
Income taxes			(1)
Net amounts reclassified from cumulative other comprehensive income (loss)			2
Total other comprehensive income (loss)			3
Ending balance	(12)		(12)
Prior service credits (costs) | Other Postretirement Benefits
Beginning balance			43
Other comprehensive income (loss) before reclassifications			(2)
Income taxes			0
Net other comprehensive income (loss) before reclassifications			(2)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			(6)
Income taxes			2
Net amounts reclassified from cumulative other comprehensive income (loss)			(4)
Total other comprehensive income (loss)			(6)
Ending balance	37		37
Unrealized gains on available-for-sale securities
Beginning balance			6
Other comprehensive income (loss) before reclassifications			0
Income taxes			0
Net other comprehensive income (loss) before reclassifications			0
Amounts reclassified from cumulative other comprehensive income (loss)(1)			0
Income taxes			0
Net amounts reclassified from cumulative other comprehensive income (loss)			0
Total other comprehensive income (loss)			0
Ending balance	$ 6		$ 6