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SECURITIES - Schedule of Available for Sale Securities Debt Maturities (Details) $ in Millions | Jun. 30, 2019 USD ($)
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Amortized cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | $ 95
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 223
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 1,717
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 19,619
Amortized Cost, Debt securities available for sale, Total | 21,654
Amortized Cost, Debt securities held to maturity, Maturity of 1 Year or Less | 0
Amortized Cost, Debt securities held to maturity, Maturity of 1-5 Years | 0
Amortized Cost, Debt securities held to maturity, Maturity of 5-10 Years | 0
Amortized Cost, Debt securities held to maturity, Maturity After 10 Years | 3,447
Amortized Cost, Debt securities held to maturity, Total | 3,447
Total amortized cost of debt securities, Maturity of 1 Year or Less | 95
Total amortized cost of debt securities, Maturity of 1-5 Years | 223
Total amortized cost of debt securities, Maturity of 5-10 Years | 1,717
Total amortized cost of debt securities, Maturity After 10 Years | 23,066
Total amortized cost of debt securities, Total | 25,101
Fair value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 95
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 222
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 1,735
Fair Value, Debt securities available for sale, Maturity After 10 Years | 19,646
Fair Value, Debt securities available for sale, Total | 21,698
Fair Value, Debt securities held to maturity, Maturity of 1 Year or Less | 0
Fair Value, Debt securities held to maturity, Maturity of 1-5 Years | 0
Fair Value, Debt securities held to maturity, Maturity of 5-10 Years | 0
Fair Value, Debt securities held to maturity, Maturity After 10 Years | 3,441
Fair Value, Debt securities held to maturity, Total | 3,441
Total fair value of debt securities, Maturity of 1 Year or Less | 95
Total fair value of debt securities, Maturity of 1-5 Years | 222
Total fair value of debt securities, Maturity of 5-10 Years | 1,735
Total fair value of debt securities, Maturity After 10 Years | 23,087
Total fair value of debt securities, Total | 25,139
U.S. Treasury and other |
Amortized cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | 90
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 0
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 0
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 0
Amortized Cost, Debt securities available for sale, Total | 90
Fair value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 90
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 0
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 0
Fair Value, Debt securities available for sale, Maturity After 10 Years | 0
Fair Value, Debt securities available for sale, Total | 90
State and political subdivisions |
Amortized cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | 0
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 0
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 0
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 5
Amortized Cost, Debt securities available for sale, Total | 5
Fair value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 0
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 0
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 0
Fair Value, Debt securities available for sale, Maturity After 10 Years | 5
Fair Value, Debt securities available for sale, Total | 5
Federal agencies and U.S. government sponsored entities |
Amortized cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | 0
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 221
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 1,717
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 18,750
Amortized Cost, Debt securities available for sale, Total | 20,688
Amortized Cost, Debt securities held to maturity, Maturity of 1 Year or Less | 0
Amortized Cost, Debt securities held to maturity, Maturity of 1-5 Years | 0
Amortized Cost, Debt securities held to maturity, Maturity of 5-10 Years | 0
Amortized Cost, Debt securities held to maturity, Maturity After 10 Years | 3,447
Amortized Cost, Debt securities held to maturity, Total | 3,447
Fair value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 0
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 219
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 1,735
Fair Value, Debt securities available for sale, Maturity After 10 Years | 18,754
Fair Value, Debt securities available for sale, Total | 20,708
Fair Value, Debt securities held to maturity, Maturity of 1 Year or Less | 0
Fair Value, Debt securities held to maturity, Maturity of 1-5 Years | 0
Fair Value, Debt securities held to maturity, Maturity of 5-10 Years | 0
Fair Value, Debt securities held to maturity, Maturity After 10 Years | 3,441
Fair Value, Debt securities held to maturity, Total | 3,441
Other/non-agency |
Amortized cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | 5
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 2
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 0
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 864
Amortized Cost, Debt securities available for sale, Total | 871
Fair value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 5
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 3
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 0
Fair Value, Debt securities available for sale, Maturity After 10 Years | 887
Fair Value, Debt securities available for sale, Total | $ 895

X
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