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, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Beginning balance			$ (1,459)
Other comprehensive income (loss) before reclassifications			30
Income taxes			(14)
Net other comprehensive income (loss) before reclassifications			16
Amounts reclassified from cumulative other comprehensive income (loss)(1)			99
Income taxes			(35)
Net amounts reclassified from cumulative other comprehensive income (loss)			64
Total other comprehensive income	$ 49	$ 30	80	$ 79
Ending balance	(1,379)		(1,379)
Foreign currency translation adjustments
Beginning balance			232
Other comprehensive income (loss) before reclassifications			11
Income taxes			0
Net other comprehensive income (loss) before reclassifications			11
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			11
Ending balance	243		243
Actuarial losses | Pension
Beginning balance			(1,651)
Other comprehensive income (loss) before reclassifications			21
Income taxes			(15)
Net other comprehensive income (loss) before reclassifications			6
Amounts reclassified from cumulative other comprehensive income (loss)(1)			97
Income taxes			(33)
Net amounts reclassified from cumulative other comprehensive income (loss)			64
Total other comprehensive income			70
Ending balance	(1,581)		(1,581)
Actuarial losses | Other Postretirement Benefits
Beginning balance			(67)
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)			4
Income taxes			(2)
Net amounts reclassified from cumulative other comprehensive income (loss)			2
Total other comprehensive income			2
Ending balance	(65)		(65)
Prior service costs | Pension
Beginning balance			(9)
Other comprehensive income (loss) before reclassifications			(3)
Income taxes			1
Net other comprehensive income (loss) before reclassifications			(2)
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	(10)		(10)
Prior service costs | Other Postretirement Benefits
Beginning balance			29
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)			(4)
Income taxes			1
Net amounts reclassified from cumulative other comprehensive income (loss)			(3)
Total other comprehensive income			(3)
Ending balance	26		26
Unrealized gains on available-for-sale securities
Beginning balance			7
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	$ 8		$ 8