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Fair Value (Unobservable Input Reconciliation) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Residential mortgage loans - FVO |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | $ 127 | $ 165 |
Total realized/unrealized gains (losses) included in net income (loss) | (8) | (5) | $ 9
Total realized/unrealized gains (losses) included in AOCI | 0 | 0 | 0
Purchases | 0 | 0 |
Sales | (108) | (11) |
Issuances | 0 | 0 |
Settlements | (11) | (22) |
Transfers into Level 3 | 0 | 0 |
Transfers out of Level 3 | 0 | 0 |
Balance at December 31, | 0 | 127 | 165
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | (10) | 3
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | (10) | 3
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Net Derivatives |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 325 | (361) | 67
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (459) | (128) | 579
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Balance at January 1, | (152) | 594 |
Total realized/unrealized gains (losses) included in net income (loss) | 238 | (460) | 279
Total realized/unrealized gains (losses) included in AOCI | (537) | (334) | 761
Purchases | 82 | 30 |
Sales | 0 | 0 |
Issuances | (3) | (13) |
Settlements | 201 | 32 |
Transfers into Level 3 | 0 | 1 |
Transfers out of Level 3 | 1 | (2) |
Balance at December 31, | (170) | (152) | 594
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 325 | (361) | 67
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (459) | (128) | 579
Net Embedded Derivatives |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 171 | 746 | (124)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 22 | 27 | (33)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Balance at January 1, | (611) | (1,141) |
Total realized/unrealized gains (losses) included in net income (loss) | 172 | 747 | (110)
Total realized/unrealized gains (losses) included in AOCI | 22 | 27 | (34)
Purchases | 0 | 0 |
Sales | 0 | 0 |
Issuances | 0 | 0 |
Settlements | (132) | (244) |
Transfers into Level 3 | 0 | 0 |
Transfers out of Level 3 | 0 | 0 |
Balance at December 31, | (549) | (611) | (1,141)
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 171 | 746 | (124)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 22 | 27 | (33)
Corporate fixed maturity securities |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 25,435 | 24,101 |
Total realized/unrealized gains (losses) included in net income (loss) | (7) | (34) | (88)
Total realized/unrealized gains (losses) included in AOCI | (6,221) | (1,334) | 1,774
Purchases | 5,273 | 4,988 |
Sales | (1,762) | (1,543) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 2,127 | 179 |
Transfers out of Level 3 | (444) | (922) |
Balance at December 31, | 24,401 | 25,435 | 24,101
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | (3) | (5) | (48)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (6,136) | (1,293) | 1,754
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | (3) | (5) | (48)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (6,136) | (1,293) | 1,754
Foreign government |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 91 | 117 |
Total realized/unrealized gains (losses) included in net income (loss) | (38) | 0 | (2)
Total realized/unrealized gains (losses) included in AOCI | (13) | (2) | (1)
Purchases | 36 | 1 |
Sales | (9) | (8) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 46 | 12 |
Transfers out of Level 3 | (10) | (29) |
Balance at December 31, | 103 | 91 | 117
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | (38) | 0 | (1)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (13) | (2) | (1)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | (38) | 0 | (1)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (13) | (2) | (1)
Structured Securities |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 5,871 | 5,289 |
Total realized/unrealized gains (losses) included in net income (loss) | 29 | 46 | 49
Total realized/unrealized gains (losses) included in AOCI | (478) | (26) | 41
Purchases | 967 | 1,824 |
Sales | (984) | (1,326) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 251 | 358 |
Transfers out of Level 3 | (1,387) | (294) |
Balance at December 31, | 4,269 | 5,871 | 5,289
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 27 | 42 | 54
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (450) | (24) | 47
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 27 | 42 | 54
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (450) | (24) | 47
Equity Securities |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 151 | 150 |
Total realized/unrealized gains (losses) included in net income (loss) | 16 | 27 | 12
Total realized/unrealized gains (losses) included in AOCI | 0 | 0 | 0
Purchases | 108 | 12 |
Sales | (14) | (35) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 0 | 0 |
Transfers out of Level 3 | (2) | (3) |
Balance at December 31, | 259 | 151 | 150
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 11 | 13 | 2
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 11 | 13 | 2
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Unit-linked and FVO Securities |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 901 | 701 |
Total realized/unrealized gains (losses) included in net income (loss) | (133) | 101 | 67
Total realized/unrealized gains (losses) included in AOCI | 0 | 0 | 0
Purchases | 28 | 42 |
Sales | (24) | (18) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 23 | 86 |
Transfers out of Level 3 | (8) | (11) |
Balance at December 31, | 787 | 901 | 701
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | (131) | 101 | 69
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | (131) | 101 | 69
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Short-term Investments |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 3 | 43 |
Total realized/unrealized gains (losses) included in net income (loss) | 0 | 1 | (7)
Total realized/unrealized gains (losses) included in AOCI | 0 | (3) | 4
Purchases | 56 | 2 |
Sales | (2) | (37) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 0 | 0 |
Transfers out of Level 3 | 0 | (3) |
Balance at December 31, | 57 | 3 | 43
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | 0 | (7)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 4
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | 0 | (7)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 4
Other Investments |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 898 | 573 |
Total realized/unrealized gains (losses) included in net income (loss) | 57 | 94 | 19
Total realized/unrealized gains (losses) included in AOCI | 0 | 0 | 0
Purchases | 246 | 348 |
Sales | (177) | (92) |
Issuances | 0 | 0 |
Settlements | 0 | 0 |
Transfers into Level 3 | 0 | 0 |
Transfers out of Level 3 | (98) | (25) |
Balance at December 31, | 926 | 898 | 573
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 56 | 89 | 24
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 56 | 89 | 24
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Separate Accounts (9) |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at January 1, | 2,131 | 1,079 |
Total realized/unrealized gains (losses) included in net income (loss) | 61 | 29 | (5)
Total realized/unrealized gains (losses) included in AOCI | 0 | 0 | 0
Purchases | 202 | 1,056 |
Sales | (1,164) | (44) |
Issuances | (2) | (2) |
Settlements | 4 | 6 |
Transfers into Level 3 | 1 | 10 |
Transfers out of Level 3 | (23) | (3) |
Balance at December 31, | 1,210 | 2,131 | 1,079
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | 0 | 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | 0 | 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | $ 0 | $ 0 | $ 0

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- Definition Amount of unrealized gain (loss) recognized in other comprehensive income (OCI) from asset (liability) measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of issuances of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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- Definition Amount of purchases of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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