Amount of dividends paid to our parent company without prior approval by state regulatory authorities

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- Definition

Statutory Accounting Practices, Statutory Capital and Surplus Required, Contributions

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No definition available.

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This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method.

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

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Amount of interest expense incurred on a debt or other obligation to related party.

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Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).

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Amount of dividends that can be declared or paid without approval of regulatory agency.

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- Definition

The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

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Amount of statutory capital required to be maintained as of the balance sheet date under prescribed or permitted statutory accounting practices.

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(Additional Information) (Detail) - USD ($) $ in Millions		12 Months Ended
(Additional Information) (Detail) - USD ($) $ in Millions	Feb. 14, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Cash dividends received from subsidiary		$ 763	$ 493	$ 927
Investment income		389	474	377
Aggregate statutory capital and surplus in our state regulated insurance subsidiaries		7,700	6,600
Aggregate minimum regulatory requirements of statutory capital and surplus		4,800	4,600
Dividends that may be paid to the parent company without prior approval by state regulatory authorities in 2014		850
Dividends that were paid to the parent company without prior approval by state regulatory authorities		763
Majority-Owned Subsidiary, Unconsolidated
Condensed Financial Statements, Captions [Line Items]
Interest expense on subsidiary notes payable		1	$ 1	$ 1
Other long-term assets
Condensed Financial Statements, Captions [Line Items]
Related party receivable		$ 314
Minimum \| Majority-Owned Subsidiary, Unconsolidated
Condensed Financial Statements, Captions [Line Items]
Debt instrument, stated interest rate		1.93%
Maximum \| Majority-Owned Subsidiary, Unconsolidated
Condensed Financial Statements, Captions [Line Items]
Debt instrument, stated interest rate		6.65%
Subsequent Event
Condensed Financial Statements, Captions [Line Items]
Contributions of statutory capital and surplus into regulated subsidiaries (in first quarter of 2016)	$ 535