Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Summarized Activity Related to Unrecognized Tax Benefits (Detail)

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INCOME TAXES - Summarized Activity Related to Unrecognized Tax Benefits (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Tax      
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Beginning Balance $ 172 $ 191 $ 232
Additions for tax positions of the current year 24 15 15
Additions for tax positions of prior years 45 51 20
Reductions for tax positions of prior years for:      
Changes based on facts and circumstances (85) (74) (67)
Settlements during the period (6) (10) (8)
Lapses of applicable statute of limitations (2) (1) (1)
Ending Balance 148 172 191
Interest      
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Beginning Balance 42 40 53
Additions for tax positions of the current year 0 0 0
Additions for tax positions of prior years 21 13 9
Reductions for tax positions of prior years for:      
Changes based on facts and circumstances (8) (8) (23)
Settlements during the period (2) (2) 1
Lapses of applicable statute of limitations 0 (1) 0
Ending Balance 53 42 40
Penalties      
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Beginning Balance 3 4 4
Additions for tax positions of the current year 0 0 0
Additions for tax positions of prior years 3 0 2
Reductions for tax positions of prior years for:      
Changes based on facts and circumstances 0 0 (1)
Settlements during the period 0 0 0
Lapses of applicable statute of limitations 0 (1) (1)
Ending Balance $ 6 $ 3 $ 4