CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) Items Included in Cumulative Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Beginning balance	$ (1,459)
Other comprehensive income (loss) before reclassifications	1
Income taxes	(6)
Net other comprehensive income (loss) before reclassifications	(5)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	56
Income taxes	(20)
Net amounts reclassified from cumulative other comprehensive income (loss)	36
Total other comprehensive income	31	$ 49
Ending balance	(1,428)
Foreign currency translation adjustments
Beginning balance	232
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	234
Actuarial losses | Pension
Beginning balance	(1,651)
Other comprehensive income (loss) before reclassifications	(2)
Income taxes	(6)
Net other comprehensive income (loss) before reclassifications	(8)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	55
Income taxes	(19)
Net amounts reclassified from cumulative other comprehensive income (loss)	36
Total other comprehensive income	28
Ending balance	(1,623)
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)	2
Income taxes	(1)
Net amounts reclassified from cumulative other comprehensive income (loss)	1
Total other comprehensive income	1
Ending balance	(66)
Prior service costs | Pension
Beginning balance	(9)
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	(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)	(2)
Income taxes	1
Net amounts reclassified from cumulative other comprehensive income (loss)	(1)
Total other comprehensive income	(1)
Ending balance	28
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