Summary of Significant Accounting Policies (Details) $ in Millions	9 Months Ended
Sep. 30, 2016 segment	Dec. 31, 2015 USD ($)
Accounting Policies [Abstract]
Number of reportable segments \| segment	2
Adjustments for New Accounting Pronouncement \| Debt
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs		$ 10
Adjustments for New Accounting Pronouncement \| Other Assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs		$ (10)

For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant