Variable Interest Entities - Variable Interests Held by Us and Our Maximum Exposure to Loss Rising From Our Involvements in Those VIEs (Details) - USD ($) $ in Millions		Mar. 31, 2024		Dec. 31, 2023		Mar. 31, 2023
Variable Interest Entity [Line Items]
Consolidated Assets		$ 166,966	[1]	$ 168,238	[1]	$ 166,550
Consolidated Liabilities	[1]	155,210		156,599
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total Assets Held by Unconsolidated VIEs		7,644		7,825
Consolidated Assets		1,727		1,731
Consolidated Liabilities		312		327
Maximum Exposure to Loss		1,727		1,731
Limited partnership investments
Variable Interest Entity [Line Items]
Total Assets Held by Unconsolidated VIEs		6,537		6,718
Consolidated Assets		799		793
Consolidated Liabilities		312		327
Maximum Exposure to Loss		799		793
Asset-backed financing SPEs
Variable Interest Entity [Line Items]
Total Assets Held by Unconsolidated VIEs		1,107		1,107
Consolidated Assets		928		938
Consolidated Liabilities		0		0
Maximum Exposure to Loss		$ 928		$ 938

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at March 31, 2024 and December 31, 2023. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 15, "Variable Interest Entities," for additional information. March 31, 2024December 31, 2023(in millions)AssetsOther assets$21 $23 Total assets$21 $23 LiabilitiesInterest, taxes and other liabilities$28 $17 Total liabilities$28 $17