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Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	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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Adoption of New Accounting Standard Current Expected Credit Losses

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Amount of valuation and qualifying accounts and reserves.

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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

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Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.12-09(Column C)(1))
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Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense.

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-Publisher FASB
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-Topic 235
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