Receivables, net - Contractual Maturities (Details) $ in Millions	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
2016	$ 30
2017	28
2018	39
2019	81
2020	308
Thereafter	8,670
Total	9,156
First lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2016	15
2017	16
2018	25
2019	37
2020	56
Thereafter	7,153
Total	7,302
Second lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2016	15
2017	12
2018	14
2019	44
2020	252
Thereafter	1,517
Total	$ 1,854