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SECURITIES - Schedule of Available for Sale Securities Debt Maturities (Details) $ in Millions | Jun. 30, 2018 USD ($)
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Amortized Cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | $ 14
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 339
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 1,402
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 19,091
Amortized Cost, Debt securities available for sale, Total | 20,846
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 | 4,417
Amortized Cost, Debt securities held to maturity, Total | 4,417
Total amortized cost of debt securities, Maturity of 1 Year or Less | 14
Total amortized cost of debt securities, Maturity of 1-5 Years | 339
Total amortized cost of debt securities, Maturity of 5-10 Years | 1,402
Total amortized cost of debt securities, Maturity After 10 Years | 23,508
Total amortized cost of debt securities, Total | 25,263
Fair Value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 14
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 334
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 1,372
Fair Value, Debt securities available for sale, Maturity After 10 Years | 18,437
Fair Value, Debt securities available for sale, Total | 20,157
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 | 4,260
Fair Value, Debt securities held to maturity, Total | 4,260
Total fair value of debt securities, Maturity of 1 Year or Less | 14
Total fair value of debt securities, Maturity of 1-5 Years | 334
Total fair value of debt securities, Maturity of 5-10 Years | 1,372
Total fair value of debt securities, Maturity After 10 Years | 22,697
Total fair value of debt securities, Total | 24,417
U.S. Treasury and other |
Amortized Cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | 12
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 | 12
Fair Value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 12
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 | 12
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 | 6
Amortized Cost, Debt securities available for sale, Total | 6
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 | 6
Fair Value, Debt securities available for sale, Total | 6
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 | 326
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 1,402
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 18,831
Amortized Cost, Debt securities available for sale, Total | 20,559
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 | 3,632
Amortized Cost, Debt securities held to maturity, Total | 3,632
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 | 321
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 1,372
Fair Value, Debt securities available for sale, Maturity After 10 Years | 18,178
Fair Value, Debt securities available for sale, Total | 19,871
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 | 3,473
Fair Value, Debt securities held to maturity, Total | 3,473
Other/non-agency |
Amortized Cost: |
Amortized Cost, Debt securities available for sale, Maturity of 1 Year or Less | 2
Amortized Cost, Debt securities available for sale, Maturity of 1-5 Years | 13
Amortized Cost, Debt securities available for sale, Maturity of 5-10 Years | 0
Amortized Cost, Debt securities available for sale, Maturity After 10 Years | 254
Amortized Cost, Debt securities available for sale, Total | 269
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 | 785
Amortized Cost, Debt securities held to maturity, Total | 785
Fair Value: |
Fair Value, Debt securities available for sale, Maturity of 1 Year or Less | 2
Fair Value, Debt securities available for sale, Maturity of 1-5 Years | 13
Fair Value, Debt securities available for sale, Maturity of 5-10 Years | 0
Fair Value, Debt securities available for sale, Maturity After 10 Years | 253
Fair Value, Debt securities available for sale, Total | 268
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 | 787
Fair Value, Debt securities held to maturity, Total | $ 787

X
- Definition Amount of investment in available for sale and held-to-maturity debt securities maturing in the fifth through tenth fiscal year following the latest fiscal year. + References No definition available. + Details
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- Definition Amount of investment in available for sale and held-to-maturity debt securities maturing in the next fiscal year through the fifth fiscal year following the latest fiscal year. + References No definition available. + Details
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- Definition Amount of investment in available-for-sale debt securities with a single maturity date at cost, after adjustments, including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in the statement of income and fair value hedge accounting adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 + Details
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