Loan Receivables (Schedule of Troubled Debt Restructurings) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
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Modified Credit Card Loans [Member] | Credit Card Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | [1] | $ 256 | $ 249 | $ 256 | $ 253 | ||||||
Interest income recognized during period loans were impaired | [1],[2] | 12 | 12 | 23 | 23 | ||||||
Gross interest income that would have been recorded with original terms | [1],[3] | 1 | 1 | 2 | 2 | ||||||
Internal Programs [Member] | Credit Card Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 450 | 452 | 451 | 453 | |||||||
Interest income recognized during period loans were impaired | [2] | 3 | 3 | 6 | 6 | ||||||
Gross interest income that would have been recorded with original terms | [3] | 15 | 16 | 30 | 31 | ||||||
External Programs [Member] | Credit Card Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 311 | 373 | 317 | 384 | |||||||
Interest income recognized during period loans were impaired | [2] | 6 | 7 | 12 | 14 | ||||||
Gross interest income that would have been recorded with original terms | [3] | 3 | 3 | 6 | 6 | ||||||
Internal And External Loan Modification Programs [Member] | Total Other Loans [Member] | Personal Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 60 | 46 | 58 | 45 | |||||||
Interest income recognized during period loans were impaired | [2] | 1 | 1 | 3 | 2 | ||||||
Gross interest income that would have been recorded with original terms | [3] | 0 | 1 | 1 | 1 | ||||||
Entity Loan Modification Program [Member] | Total Other Loans [Member] | Private Student Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 42 | 31 | 41 | 30 | |||||||
Interest income recognized during period loans were impaired | [2] | $ 1 | $ 0 | $ 2 | $ 1 | ||||||
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