CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) - Items Included in Cumulative Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Beginning balance			$ (1,393)
Other comprehensive income (loss) before reclassifications			27
Income taxes			(19)
Net other comprehensive income (loss) before reclassifications			8
Amounts reclassified from cumulative other comprehensive income (loss)(1)			94
Income taxes			(32)
Net amounts reclassified from cumulative other comprehensive income (loss)			62
Total other comprehensive income	$ 56	$ 38	70	$ 23
Ending balance	(1,323)		(1,323)
Foreign currency translation adjustments
Beginning balance			304
Other comprehensive income (loss) before reclassifications			(35)
Income taxes			0
Net other comprehensive income (loss) before reclassifications			(35)
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			(35)
Ending balance	269		269
Actuarial losses | Pension
Beginning balance			(1,623)
Other comprehensive income (loss) before reclassifications			40
Income taxes			(11)
Net other comprehensive income (loss) before reclassifications			29
Amounts reclassified from cumulative other comprehensive income (loss)(1)			91
Income taxes			(31)
Net amounts reclassified from cumulative other comprehensive income (loss)			60
Total other comprehensive income			89
Ending balance	(1,534)		(1,534)
Actuarial losses | Other Postretirement Benefits
Beginning balance			(108)
Other comprehensive income (loss) before reclassifications			20
Income taxes			(7)
Net other comprehensive income (loss) before reclassifications			13
Amounts reclassified from cumulative other comprehensive income (loss)(1)			5
Income taxes			(1)
Net amounts reclassified from cumulative other comprehensive income (loss)			4
Total other comprehensive income			17
Ending balance	(91)		(91)
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)			2
Income taxes			(1)
Net amounts reclassified from cumulative other comprehensive income (loss)			1
Total other comprehensive income			2
Ending balance	(13)		(13)
Prior service credits (costs) | Other Postretirement Benefits
Beginning balance			43
Other comprehensive income (loss) before reclassifications			(1)
Income taxes			0
Net other comprehensive income (loss) before reclassifications			(1)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			(4)
Income taxes			1
Net amounts reclassified from cumulative other comprehensive income (loss)			(3)
Total other comprehensive income			(4)
Ending balance	39		39
Unrealized gains on available-for-sale securities
Beginning balance			6
Other comprehensive income (loss) before reclassifications			1
Income taxes			0
Net other comprehensive income (loss) before reclassifications			1
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			1
Ending balance	$ 7		$ 7