TAXES ON INCOME Taxes on Income - Actual versus Statutory (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
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
Permanent differences and other	0	0	0	3
Total income tax expense	$ 76	$ 25	$ 95	$ 97