Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04.2)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
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Condensed Financial Information (Parent Company) (Subsequent Events - Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Feb. 10, 2017	Dec. 31, 2016	Apr. 01, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Face Amount			$ 3,200		$ 3,200
Parent Company
Condensed Financial Statements, Captions [Line Items]
Advances to Affiliate			1,200	$ 140	1,200
Long-term Debt			18,605		20,241
Parent Company \| Subsequent Event [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.595%
Advances to Affiliate		$ 750
Junior Subordinated Debt Instrument Two [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Face Amount			$ 750		$ 750
Debt Instrument, Interest Rate, Stated Percentage			9.25%
Junior Subordinated Debt Instrument Two [Member] \| Subsequent Event [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Face Amount	$ 750
Debt Instrument, Interest Rate, Stated Percentage	0.00%
Junior Subordinated Debt Instrument Two [Member] \| Parent Company \| Subsequent Event [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Face Amount		$ 750
Debt Instrument, Interest Rate, Stated Percentage		9.25%