Derivative Instruments and Hedging Activities Interest Spread on Interest Rate Swaps and Caps (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Average Notional Amount | $ 47,549,415,000 | $ 26,619,080,000 |
| Interest Rate Contract [Member] | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Net interest expense (income) on interest rate swaps and caps | 23,700,000 | 3,800,000 |
| Net Long Position [Member] | Interest Rate Contract [Member] | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Average Notional Amount | $ 37,600,000,000 | $ 27,800,000,000 |
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- Definition Average notional amount during the period presented specified by the derivative(s). No definition available.
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- Definition Net interest spread on interest rate swap and cap agreements, at fair value. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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