The following table provides additional information with respect to the Company's impaired Card Member loans, which are not significant for GCS, and Card Member receivables, which are not significant for ICS and GCS, as of or for the years ended December 31:
| As of December 31, 2013 | For the Year Ended December 31, 2013 | |||||||||||||||||||||||
| Loans over | ||||||||||||||||||||||||
| 90 Days | Loans & | Total | Average | |||||||||||||||||||||
| Past Due | Non- | Receivables | Impaired | Unpaid | Balance of | Interest | ||||||||||||||||||
| & Accruing | Accrual | Modified | Loans & | Principal | Allowance | Impaired | Income | |||||||||||||||||
| 2013 (Millions) | Interest | (a) | Loans | (b) | as a TDR | (c) | Receivables | Balance | (d) | for TDRs | (e) | Loans | Recognized | |||||||||||
| Card Member Loans: | ||||||||||||||||||||||||
| U.S. Card Services | $ | 170 | $ | 244 | $ | 373 | $ | 787 | $ | 731 | $ | 84 | $ | 943 | $ | 46 | ||||||||
| International Card Services | 54 | 4 | 5 | 63 | 62 | ― | 67 | 16 | ||||||||||||||||
| Card Member Receivables: | ||||||||||||||||||||||||
| U.S. Card Services | ― | ― | 50 | 50 | 49 | 38 | 81 | ― | ||||||||||||||||
| Total | $ | 224 | $ | 248 | $ | 428 | $ | 900 | $ | 842 | $ | 122 | $ | 1,091 | $ | 62 | ||||||||
| As of December 31, 2012 | For the Year Ended December 31, 2012 | |||||||||||||||||||||||
| Loans over | ||||||||||||||||||||||||
| 90 Days | Loans & | Total | Average | |||||||||||||||||||||
| Past Due | Non- | Receivables | Impaired | Unpaid | Balance of | Interest | ||||||||||||||||||
| & Accruing | Accrual | Modified | Loans & | Principal | Allowance | Impaired | Income | |||||||||||||||||
| 2012 (Millions) | Interest | (a) | Loans | (b) | as a TDR | (c) | Receivables | Balance | (d) | for TDRs | (e) | Loans | Recognized | |||||||||||
| Card Member Loans: | ||||||||||||||||||||||||
| U.S. Card Services | $ | 73 | $ | 426 | $ | 627 | $ | 1,126 | $ | 1,073 | $ | 152 | $ | 1,221 | $ | 47 | ||||||||
| International Card Services | 59 | 5 | 6 | 70 | 69 | 1 | 75 | 16 | ||||||||||||||||
| Card Member Receivables: | ||||||||||||||||||||||||
| U.S. Card Services | ― | ― | 117 | 117 | 111 | 91 | 135 | ― | ||||||||||||||||
| Total | $ | 132 | $ | 431 | $ | 750 | $ | 1,313 | $ | 1,253 | $ | 244 | $ | 1,431 | $ | 63 | ||||||||
| As of December 31, 2011 | For the Year Ended December 31, 2011 | |||||||||||||||||||||||
| Loans over | ||||||||||||||||||||||||
| 90 Days | Loans & | Total | Average | |||||||||||||||||||||
| Past Due | Non- | Receivables | Impaired | Unpaid | Balance of | Interest | ||||||||||||||||||
| & Accruing | Accrual | Modified | Loans & | Principal | Allowance | Impaired | Income | |||||||||||||||||
| 2011 (Millions) | Interest | (a) | Loans | (b) | as a TDR | (c) | Receivables | Balance | (d) | for TDRs | (e) | Loans | Recognized | |||||||||||
| Card Member Loans: | ||||||||||||||||||||||||
| U.S. Card Services | $ | 64 | $ | 529 | $ | 736 | $ | 1,329 | $ | 1,268 | $ | 174 | $ | 1,498 | $ | 52 | ||||||||
| International Card Services | 67 | 6 | 8 | 81 | 80 | 2 | 98 | 26 | ||||||||||||||||
| Card Member Receivables: | ||||||||||||||||||||||||
| U.S. Card Services | ― | ― | 174 | 174 | 165 | 118 | 145 | ― | ||||||||||||||||
| Total | $ | 131 | $ | 535 | $ | 918 | $ | 1,584 | $ | 1,513 | $ | 294 | $ | 1,741 | $ | 78 | ||||||||