Income Taxes Income Taxes (Schedule of Income Tax (Expense) Benefit) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	3 Months Ended	12 Months Ended	6 Months Ended		12 Months Ended
	Jul. 10, 2013	Dec. 30, 2012 Successor [Member]	Dec. 31, 2013 Successor [Member]	Jul. 10, 2013 Predecessor [Member]	Jun. 30, 2012 Predecessor [Member]	Dec. 31, 2012 Predecessor [Member]	Dec. 31, 2011 Predecessor [Member]
Current income tax (expense) benefit
Federal		$ (3)	$ 1	$ 2		$ 34	$ (1)
State		0	(13)	(17)		22	(20)
Total current income tax (expense) benefit		3	12	15		(56)	21
Deferred income tax (expense) benefit
Federal		(1)	(46)	(1,402)		(199)	(136)
State		0	14	(184)		(10)	(95)
Total deferred income tax expense		1	32	1,586		209	231
Foreign income tax expense		0	(1)	0		(1)	(2)
Total income tax expense	$ 1,600	$ 4	$ 45	$ 1,601	$ 154	$ 154	$ 254