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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Beginning balance			$ (1,459)
Other comprehensive income (loss) before reclassifications			35
Income taxes			(9)
Net other comprehensive income (loss) before reclassifications			26
Amounts reclassified from cumulative other comprehensive income (loss)(1)			148
Income taxes			(52)
Net amounts reclassified from cumulative other comprehensive income (loss)			96
Total other comprehensive income	$ 42	$ 23	122	$ 102
Ending balance	(1,337)		(1,337)
Foreign currency translation adjustments
Beginning balance			232
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	267		267
Actuarial losses | Pension
Beginning balance			(1,651)
Other comprehensive income (loss) before reclassifications			1
Income taxes			(10)
Net other comprehensive income (loss) before reclassifications			(9)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			145
Income taxes			(49)
Net amounts reclassified from cumulative other comprehensive income (loss)			96
Total other comprehensive income			87
Ending balance	(1,564)		(1,564)
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)			6
Income taxes			(3)
Net amounts reclassified from cumulative other comprehensive income (loss)			3
Total other comprehensive income			3
Ending balance	(64)		(64)
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)			3
Income taxes			(1)
Net amounts reclassified from cumulative other comprehensive income (loss)			2
Total other comprehensive income			0
Ending balance	(9)		(9)
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)			(6)
Income taxes			1
Net amounts reclassified from cumulative other comprehensive income (loss)			(5)
Total other comprehensive income			(5)
Ending balance	24		24
Unrealized gains on available-for-sale securities
Beginning balance			7
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)			0
Income taxes			0
Net amounts reclassified from cumulative other comprehensive income (loss)			0
Total other comprehensive income			2
Ending balance	$ 9		$ 9