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Financing Receivables (Credit Quality Information Tables) (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019
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SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Credit Card Receivables |  |  | $ 91
Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | $ 117 |  |
Originated in Fiscal Year before Latest Fiscal Year | 264 |  |
Originated Two Years before Latest Fiscal Year | 197 |  |
Originated Three Years before Latest Fiscal Year | 293 |  |
Originated Four Years before Latest Fiscal Year | 233 |  |
Originated Five or More Years before Latest Fiscal Year | 1,674 |  |
Total loans, gross | 2,778 | $ 2,797 |
Less: allowance for loan losses | 29 | 19 |
Total loans, net | $ 2,749 | $ 2,778 |
Percentage of gross commercial mortgage loans | 100.00% | 100.00% |
Syndicated loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | $ 41 |  |
Originated in Fiscal Year before Latest Fiscal Year | 100 |  |
Originated Two Years before Latest Fiscal Year | 137 |  |
Originated Three Years before Latest Fiscal Year | 167 |  |
Originated Four Years before Latest Fiscal Year | 59 |  |
Originated Five or More Years before Latest Fiscal Year | 123 |  |
Total loans, gross | 627 | $ 543 |
Syndicated loans [Member] | Internal Risk Rating 3 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Fiscal Year before Latest Fiscal Year | 4 |  |
Originated Two Years before Latest Fiscal Year | 9 |  |
Originated Three Years before Latest Fiscal Year | 28 |  |
Originated Four Years before Latest Fiscal Year | 13 |  |
Originated Five or More Years before Latest Fiscal Year | 26 |  |
Total loans, gross | 80 |  |
Syndicated loans [Member] | Internal Risk Rating 4 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Fiscal Year before Latest Fiscal Year | 4 |  |
Originated Two Years before Latest Fiscal Year | 4 |  |
Originated Three Years before Latest Fiscal Year | 9 |  |
Originated Four Years before Latest Fiscal Year | 2 |  |
Originated Five or More Years before Latest Fiscal Year | 10 |  |
Total loans, gross | 29 |  |
Loans to financial advisors [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 124 |  |
Originated in Fiscal Year before Latest Fiscal Year | 141 |  |
Originated Two Years before Latest Fiscal Year | 104 |  |
Originated Three Years before Latest Fiscal Year | 131 |  |
Originated Four Years before Latest Fiscal Year | 88 |  |
Originated Five or More Years before Latest Fiscal Year | 105 |  |
Total loans, gross | 693 |  |
FICO Score, Greater than 800 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Credit Card Receivables |  |  | 25
FICO Score, 750-799 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Credit Card Receivables |  |  | 22
FICO Score, 700-749 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Credit Card Receivables |  |  | 25
FICO Score. 650 to 699 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Credit Card Receivables |  |  | 14
FICO Score, Less than 650 [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Credit Card Receivables |  |  | $ 5
Active [Member] | Loans to financial advisors [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 124 |  |
Originated in Fiscal Year before Latest Fiscal Year | 141 |  |
Originated Two Years before Latest Fiscal Year | 104 |  |
Originated Three Years before Latest Fiscal Year | 130 |  |
Originated Four Years before Latest Fiscal Year | 86 |  |
Originated Five or More Years before Latest Fiscal Year | 95 |  |
Total loans, gross | 680 |  |
Terminated [Member] | Loans to financial advisors [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 0 |  |
Originated in Fiscal Year before Latest Fiscal Year | 0 |  |
Originated Two Years before Latest Fiscal Year | 0 |  |
Originated Three Years before Latest Fiscal Year | 1 |  |
Originated Four Years before Latest Fiscal Year | 2 |  |
Originated Five or More Years before Latest Fiscal Year | 10 |  |
Total loans, gross | 13 |  |
Internal Risk Rating 5 [Member] | Syndicated loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 0 |  |
Originated in Fiscal Year before Latest Fiscal Year | 0 |  |
Originated Two Years before Latest Fiscal Year | 1 |  |
Originated Three Years before Latest Fiscal Year | 0 |  |
Originated Four Years before Latest Fiscal Year | 0 |  |
Originated Five or More Years before Latest Fiscal Year | 0 |  |
Total loans, gross | 1 |  |
Internal Risk Rating 4 [Member] | Syndicated loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 0 |  |
Internal Risk Rating 3 [Member] | Syndicated loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 0 |  |
Internal Risk Rating 2 [Member] | Syndicated loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 20 |  |
Originated in Fiscal Year before Latest Fiscal Year | 53 |  |
Originated Two Years before Latest Fiscal Year | 65 |  |
Originated Three Years before Latest Fiscal Year | 71 |  |
Originated Four Years before Latest Fiscal Year | 21 |  |
Originated Five or More Years before Latest Fiscal Year | 47 |  |
Total loans, gross | 277 |  |
Internal Risk Rating 1 [Member] | Syndicated loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 21 |  |
Originated in Fiscal Year before Latest Fiscal Year | 39 |  |
Originated Two Years before Latest Fiscal Year | 58 |  |
Originated Three Years before Latest Fiscal Year | 59 |  |
Originated Four Years before Latest Fiscal Year | 23 |  |
Originated Five or More Years before Latest Fiscal Year | 40 |  |
Total loans, gross | 240 |  |
Apartment Building [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 717 | $ 692 |
Percentage of gross commercial mortgage loans | 26.00% | 25.00% |
Hotel [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 50 | $ 51 |
Percentage of gross commercial mortgage loans | 2.00% | 2.00% |
Industrial [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 434 | $ 429 |
Percentage of gross commercial mortgage loans | 16.00% | 15.00% |
Mixed use [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 88 | $ 78 |
Percentage of gross commercial mortgage loans | 3.00% | 3.00% |
Office [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 392 | $ 419 |
Percentage of gross commercial mortgage loans | 14.00% | 15.00% |
Retail [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 898 | $ 931 |
Percentage of gross commercial mortgage loans | 32.00% | 33.00% |
Other [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 199 | $ 197 |
Percentage of gross commercial mortgage loans | 7.00% | 7.00% |
East North Central [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 259 | $ 239 |
Percentage of gross commercial mortgage loans | 9.00% | 9.00% |
East South Central [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 119 | $ 121 |
Percentage of gross commercial mortgage loans | 4.00% | 4.00% |
Middle Atlantic [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 186 | $ 182 |
Percentage of gross commercial mortgage loans | 7.00% | 6.00% |
Mountain [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 245 | $ 251 |
Percentage of gross commercial mortgage loans | 9.00% | 9.00% |
New England [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 55 | $ 54 |
Percentage of gross commercial mortgage loans | 2.00% | 2.00% |
Pacific [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 829 | $ 831 |
Percentage of gross commercial mortgage loans | 30.00% | 30.00% |
South Atlantic [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 707 | $ 723 |
Percentage of gross commercial mortgage loans | 26.00% | 26.00% |
West North Central [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 202 | $ 214 |
Percentage of gross commercial mortgage loans | 7.00% | 8.00% |
West South Central [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Total loans, gross | $ 176 | $ 182 |
Percentage of gross commercial mortgage loans | 6.00% | 6.00% |
Greater than 100 Percent [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | $ 0 |  |
Originated in Fiscal Year before Latest Fiscal Year | 0 |  |
Originated Two Years before Latest Fiscal Year | 3 |  |
Originated Three Years before Latest Fiscal Year | 0 |  |
Originated Four Years before Latest Fiscal Year | 0 |  |
Originated Five or More Years before Latest Fiscal Year | 10 |  |
Total loans, gross | 13 |  |
80 to 100 Percent [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 15 |  |
Originated in Fiscal Year before Latest Fiscal Year | 15 |  |
Originated Two Years before Latest Fiscal Year | 12 |  |
Originated Three Years before Latest Fiscal Year | 3 |  |
Originated Four Years before Latest Fiscal Year | 5 |  |
Originated Five or More Years before Latest Fiscal Year | 21 |  |
Total loans, gross | 71 |  |
60 to 80 Percent [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 82 |  |
Originated in Fiscal Year before Latest Fiscal Year | 175 |  |
Originated Two Years before Latest Fiscal Year | 27 |  |
Originated Three Years before Latest Fiscal Year | 32 |  |
Originated Four Years before Latest Fiscal Year | 55 |  |
Originated Five or More Years before Latest Fiscal Year | 157 |  |
Total loans, gross | 528 |  |
40 to 60 Percent [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 13 |  |
Originated in Fiscal Year before Latest Fiscal Year | 50 |  |
Originated Two Years before Latest Fiscal Year | 74 |  |
Originated Three Years before Latest Fiscal Year | 160 |  |
Originated Four Years before Latest Fiscal Year | 108 |  |
Originated Five or More Years before Latest Fiscal Year | 571 |  |
Total loans, gross | 976 |  |
Less than 40 Percent [Member] | Commercial mortgage loans [Member] |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Originated in Current Fiscal Year | 7 |  |
Originated in Fiscal Year before Latest Fiscal Year | 24 |  |
Originated Two Years before Latest Fiscal Year | 81 |  |
Originated Three Years before Latest Fiscal Year | 98 |  |
Originated Four Years before Latest Fiscal Year | 65 |  |
Originated Five or More Years before Latest Fiscal Year | 915 |  |
Total loans, gross | $ 1,190 |  |

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