Derivative Instruments and Hedging Activities Interest Spread on Interest Rate Swaps and Caps (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Average Notional Amount | $ 57,194,079,000 | $ 24,263,348,000 | $ 52,476,177,000 | $ 22,037,434,000 |
| Interest Rate Contract [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Net interest expense (income) on interest rate swaps and caps | 22,900,000 | 13,800,000 | 46,600,000 | 17,600,000 |
| Net Long Position [Member] | Interest Rate Contract [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Average Notional Amount | $ 40,700,000,000 | $ 25,400,000,000 | $ 39,100,000,000 | $ 23,300,000,000 |
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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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