CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) - Items Included in Cumulative Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Beginning balance	$ (1,212)
Other comprehensive income (loss) before reclassifications	19
Income taxes	6
Net other comprehensive income (loss) before reclassifications	25
Amounts reclassified from cumulative other comprehensive income (loss)(1)	39
Income taxes	(15)
Net amounts reclassified from cumulative other comprehensive income (loss)	24
Total other comprehensive income	49	$ 14
Ending balance	(1,163)
Foreign currency translation adjustments
Beginning balance	207
Other comprehensive income (loss) before reclassifications	41
Income taxes	0
Net other comprehensive income (loss) before reclassifications	41
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	41
Ending balance	248
Prior service credits (costs) | Pension
Beginning balance	(11)
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)	1
Income taxes	(1)
Net amounts reclassified from cumulative other comprehensive income (loss)	0
Total other comprehensive income	0
Ending balance	(11)
Prior service credits (costs) | Other Postretirement Benefits
Beginning balance	35
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)	(2)
Income taxes	0
Net amounts reclassified from cumulative other comprehensive income (loss)	(2)
Total other comprehensive income	(2)
Ending balance	33
Actuarial losses | Pension
Beginning balance	(1,372)
Other comprehensive income (loss) before reclassifications	(22)
Income taxes	6
Net other comprehensive income (loss) before reclassifications	(16)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	38
Income taxes	(13)
Net amounts reclassified from cumulative other comprehensive income (loss)	25
Total other comprehensive income	9
Ending balance	(1,363)
Actuarial losses | Other Postretirement Benefits
Beginning balance	(77)
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)	2
Income taxes	(1)
Net amounts reclassified from cumulative other comprehensive income (loss)	1
Total other comprehensive income	1
Ending balance	(76)
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	0
Ending balance	$ 6