Deposits - Interest Bearing Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Amount
Money market	$ 8,107,996	$ 7,731,966
Savings	681,024	738,243
Certificates of deposit	7,707,986	7,034,121
Deposits - interest bearing	$ 16,497,006	$ 15,504,330
Weighted Average Stated Rate
Money market	2.01%	1.80%
Savings	1.40%	1.10%
Certificates of deposit	2.13%	1.93%

The aggregate of all domestic and foreign interest-bearing deposit liabilities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Amount of interest-bearing domestic money market demand account deposit liabilities.

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Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

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Amount of interest-bearing domestic time deposits. Time deposits bear interest for a fixed, stated period of time and include certificate of deposits and individual retirement accounts.

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The weighted average interest rate for domestic money market demand account deposit liabilities.

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The weighted average interest rate for domestic savings deposit liabilities.

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The weighted average interest rate for domestic time deposit liabilities.

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