Installment Receivables Activity in the deferred interest and allowance for credit losses for the installment receivables (Details) (Successor [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Successor [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Deferred interest and allowance for credit losses, beginning of period	$ 218	$ 124	$ 13
Bad debt expense	72	44
Write-offs, net of recoveries	(15)	0
Change in deferred interest on short-term and long-term installment receivables	$ 37	$ 67