Adverse Premium Development Due To The Small Business Premium Rate Adjustment Contingency, Recognized

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- Definition

Favorable Premium Development Due To The Small Business Premium Rate Adjustment Contingency Recognized

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No definition available.

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- Definition

[Line Items] for Legal Proceedings, Commitments and Contingencies, and Guarantees [Table]

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- Definition

Reduction To Pretax Operating Income Due To Interest Due To Policyholders On The Premium Rate Adjustments

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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- Definition

Amount of loss contingency liability.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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Legal Proceedings and Guarantees - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Legal Proceedings, Commitments and Contingencies, and Guarantees [Line Items]
Favorable premium development due to the small business premium rate adjustment contingency recognized	$ 0
Adverse premium development recognized as result of rating errors		$ 37,000,000
Reduction to pretax operating income	1,000,000	7,000,000
Guarantee Obligations
Legal Proceedings, Commitments and Contingencies, and Guarantees [Line Items]
Guarantor obligations, maximum exposure, undiscounted	1,800,000,000	1,800,000,000
Indemnification Agreement
Legal Proceedings, Commitments and Contingencies, and Guarantees [Line Items]
Guarantor obligations, maximum exposure, undiscounted	254,000,000	254,000,000
Guarantee agreement
Legal Proceedings, Commitments and Contingencies, and Guarantees [Line Items]
Guarantor obligations, maximum exposure, undiscounted	375,000,000	375,000,000
Guarantee and Indemnification
Legal Proceedings, Commitments and Contingencies, and Guarantees [Line Items]
Guarantor obligations, current carrying value	5,000,000	5,000,000	$ 5,000,000
Multi-Peril Package Product \| Insurance Premium Rate Adjustment
Legal Proceedings, Commitments and Contingencies, and Guarantees [Line Items]
Loss contingency accrual	$ 61,000,000	$ 61,000,000