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Securities - Summary of Amortized Cost of Available-for-Sale Securities by Contractual Maturity (Details) $ in Millions | Jun. 30, 2021 USD ($)
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Available-for-Sale Debt Securities: |  |
Due within one year | $ 119 |
Due from one to five years | 595 |
Due from five to ten years | 1,200 |
Due after ten years | 4,163 |
Total debt securities available for sale | 6,077 |
Mortgage-Related Securities |  |
Available-for-Sale Debt Securities: |  |
Due from one to five years | 242 |
Due from five to ten years | 163 |
Due after ten years | 2,572 |
Total debt securities available for sale | $ 2,977 |
Available-for-Sale Securities, Average Yield |  |
Due from one to five years, Average Yield | 3.19% |
Due from five to ten years, Average Yield | 2.47% |
Due after ten years, Average Yield | 1.93% |
Total securities available for sale, Average Yield | 2.06% |
U.S. Government and GSE obligations |  |
Available-for-Sale Debt Securities: |  |
Due within one year | $ 69 |
Due from one to five years | 22 |
Due from five to ten years | 380 |
Due after ten years | 1,096 |
Total debt securities available for sale | $ 1,567 |
Available-for-Sale Securities, Average Yield |  |
Due within one year, Average Yield | 0.17% |
Due from one to five years, Average Yield | 3.52% |
Due from five to ten years, Average Yield | 1.95% |
Due after ten years, Average Yield | 1.56% |
Total securities available for sale, Average Yield | 1.62% |
State, County, and Municipal |  |
Available-for-Sale Debt Securities: |  |
Due from five to ten years | $ 19 |
Due after ten years | 6 |
Total debt securities available for sale | $ 25 |
Available-for-Sale Securities, Average Yield |  |
Due from five to ten years, Average Yield | 3.52% | [1]
Due after ten years, Average Yield | 3.33% | [1]
Total securities available for sale, Average Yield | 3.48% | [1]
Other Debt Securities |  |
Available-for-Sale Debt Securities: |  |
Due within one year | $ 50 | [2]
Due from one to five years | 303 | [2]
Due from five to ten years | 625 | [2]
Due after ten years | 521 | [2]
Total debt securities available for sale | $ 1,499 | [2]
Available-for-Sale Securities, Average Yield |  |
Due within one year, Average Yield | 2.97% |
Due from one to five years, Average Yield | 1.74% |
Due from five to ten years, Average Yield | 2.24% |
Due after ten years, Average Yield | 1.21% |
Total securities available for sale, Average Yield | 1.81% |
[1] | Not presented on a tax-equivalent basis.
[2] | Includes corporate bonds, capital trust notes, foreign notes and asset-backed securities.

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