Consolidated Statements of Cash Flows (Parenthetical) $ in Millions	12 Months Ended
Dec. 31, 2017 USD ($)
Consolidated Entity Excluding Variable Interest Entities (VIE)
Net investments (income) loss	$ (53)
Net recognized (gains) losses on investments and derivatives	(2,180)
Sales, maturities and repayments of:
Trading securities	454
Investment funds	496
Short-term investments	351
Purchases of:
Fixed maturity securities (related party: 2017 – $(186), 2016 – $(82) and 2015 – $(64))	(18,883)
Equity securities (related party: 2017 – $0, 2016 – $(20) and 2015 – $0)	(540)
Trading securities	(396)
Investment funds	(660)
Short-term investments	(421)
Variable Interest Entities
Net recognized (gains) losses on investments and derivatives	(36)
Purchases of:
Sales, maturities, and repayments of investments	95
Purchases of investments	(23)
Related Party \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Net investments (income) loss	(63)
Net recognized (gains) losses on investments and derivatives	8
Sales, maturities and repayments of:
Trading securities	55
Investment funds	349
Short-term investments	65
Purchases of:
Fixed maturity securities (related party: 2017 – $(186), 2016 – $(82) and 2015 – $(64))	(186)
Equity securities (related party: 2017 – $0, 2016 – $(20) and 2015 – $0)	0
Trading securities	0
Investment funds	(509)
Short-term investments	(117)
Related Party \| Variable Interest Entities
Net recognized (gains) losses on investments and derivatives	(36)
Purchases of:
Sales, maturities, and repayments of investments	85
Purchases of investments	(23)
Fixed Maturity Securities \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Sales, maturities and repayments of:
Available-for-sale securities	12,634
Fixed Maturity Securities \| Related Party \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Sales, maturities and repayments of:
Available-for-sale securities	131
Equity securities \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Sales, maturities and repayments of:
Available-for-sale securities	687
Equity securities \| Related Party \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Sales, maturities and repayments of:
Available-for-sale securities	22
Other investments
Purchases of:
Transfer to Investments	$ 26

Gain (Loss) on Investments and Derivatives

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Payments to Acquire Investment Funds

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- Definition

Proceeds from Investment Funds

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No definition available.

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This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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The cash outflow to acquire debt securities classified as available-for-sale securities, because they are not classified as either held-to-maturity securities or trading securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (a)
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The cash outflow to acquire equity securities classified as available-for-sale securities, because they are not classified as trading securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.

+ References

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The cash outflow to acquire securities classified as trading securities and held for investment purposes. Excludes payments for trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

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No definition available.

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The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The cash inflow associated with the sale, maturities, repayments and calls of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

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No definition available.

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The cash inflow from sales, maturities, prepayments, calls and collections of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.

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The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.

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Value of investments transferred from the entity's investments in noncash transactions.

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