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Investments (Changes in Net Unrealized Investment Gains (Losses)) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Investments, Debt and Equity Securities [Abstract]
Unrealized investment gains (losses), beginning of period	$ (5,690)
Unrealized investment gains (losses) during the period	1,706
Unrealized investment gains (losses) relating to: Future policy benefits	(271)
Unrealized investment gains (losses) relating to: Deferred income tax benefit (expense)	(301)
Unrealized investment gains (losses), end of period	(4,556)
Change in net unrealized investment gains (losses)	$ 1,134

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- Definition

This item presents the increase (decrease) in net unrealized investment gains (losses) attributable to the Company.

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No definition available.

+ Details

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- Definition

This item presents the increase (decrease) in net unrealized investment gains (losses) related to insurance liability gain (loss) recognition.

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No definition available.

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- Definition

This item presents the increase (decrease) in net unrealized investment gains (losses) related to unrealized investment gains (losses) during the period.

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No definition available.

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- Definition

This item represents the tax effects occurring during the period which are related to the net unrealized gain (loss) resulting from changes in the fair [carrying] value during the period of available-for-sale securities and from changes in certain insurance related assets and liabilities. Such tax affects would have been charged or credited directly to other comprehensive income or to related components of shareholders' equity.

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No definition available.

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- Definition

This item presents net unrealized investment gains (losses) attributable to the Company.

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No definition available.

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No definition available.

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