TAXES ON INCOME Income Taxes - Effective Rate Reconciliation (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2012 Successor	Mar. 25, 2012 Predecessor	Dec. 31, 2011 Predecessor	Dec. 31, 2010 Predecessor
Schedule of Effective Income Tax Rate Reconciliation
Computed statutory income tax expense at 35%	$ 57	$ 23	$ 92	$ 86
Income Tax Reconciliation, Nondeductible Expense, Other	11	0	0	0
State income taxes, net of federal income tax benefit	8	2	3	8
Income Tax Reconciliation, Other Adjustments	0	0	0	3
Total income tax expense	$ 76	$ 25	$ 95	$ 97