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Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |  |
Adoption of New Accounting Standard Current Expected Credit Losses | $ 0 |  | $ 0 |  | $ 14 |
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] |  |  |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |  |
Valuation Allowances and Reserves, Balance, Beginning Balance | 218 |  | 251 |  | 236 |
Valuation Allowances and Reserves, Charged to Cost and Expense | (6) |  | (18) |  | (4) |
Valuation Allowances and Reserves, Charged to Other Accounts | (9) |  | (15) |  | (19) |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 0 |  | 0 |  | 0 |
Valuation Allowances and Reserves, Balance, Ending Balance | 221 |  | 218 |  | 251 |
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Real Estate [Member] |  |  |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |  |
Valuation Allowances and Reserves, Balance, Beginning Balance | 35 | [1] | 64 | [1] | 12 |
Valuation Allowances and Reserves, Charged to Cost and Expense | (16) |  | 0 | [1] | (38) |
Valuation Allowances and Reserves, Charged to Other Accounts | 0 |  | 0 | [1] | (14) |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 0 |  | 29 | [1] | 0 |
Valuation Allowances and Reserves, Balance, Ending Balance | 51 |  | 35 | [1] | 64 | [1]
SEC Schedule, 12-09, Allowance, Loss on Finance Receivable |  |  |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |  |
Valuation Allowances and Reserves, Balance, Beginning Balance | 31 |  | 20 |  | 0 |
Valuation Allowances and Reserves, Charged to Cost and Expense | (42) |  | (27) |  | (41) |
Valuation Allowances and Reserves, Charged to Other Accounts | 0 |  | 0 |  | 0 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 36 |  | 16 |  | 21 |
Valuation Allowances and Reserves, Balance, Ending Balance | $ 37 |  | $ 31 |  | $ 20 |
[1] | Upon adoption of Financial Instruments – Credits Losses on January 1, 2020, the Company increased the valuation allowance for mortgage loans by $14 million. The increase was reflected as a decrease to opening retained earnings, net of income taxes.

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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