Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-13-161051-index-headers.html | 2013-04-18 17:25:36 | |
| 0001193125-13-161051-index.html | 2013-04-18 17:25:36 | |
| 0001193125-13-161051.txt | 2013-04-18 17:25:36 | |
 0001193125-13-161051-xbrl.zip | 228046 | 2013-04-18 17:25:36 |
| aa-20130331.xml | 1744184 | 2013-04-18 17:25:36 |
| aa-20130331.xsd | 93158 | 2013-04-18 17:25:36 |
| aa-20130331_cal.xml | 105222 | 2013-04-18 17:25:36 |
| aa-20130331_def.xml | 465810 | 2013-04-18 17:25:36 |
| aa-20130331_lab.xml | 641937 | 2013-04-18 17:25:36 |
| aa-20130331_pre.xml | 545399 | 2013-04-18 17:25:36 |
| d501387d10q.htm | 887342 | 2013-04-18 17:25:36 |
| d501387dex12.htm | 18243 | 2013-04-18 17:25:36 |
| d501387dex15.htm | 2640 | 2013-04-18 17:25:36 |
| d501387dex31.htm | 19023 | 2013-04-18 17:25:36 |
| d501387dex32.htm | 5494 | 2013-04-18 17:25:36 |
| d501387dex95.htm | 21247 | 2013-04-18 17:25:36 |
| FilingSummary.xml | 37832 | 2013-04-18 17:25:36 |
| Financial_Report.xls | 1414126 | 2013-04-18 17:25:36 |
| R1.htm | 28796 | 2013-04-18 17:25:36 |
| R10.htm | 100380 | 2013-04-18 17:25:36 |
| R11.htm | 35626 | 2013-04-18 17:25:36 |
| R12.htm | 13003 | 2013-04-18 17:25:36 |
| R13.htm | 8042 | 2013-04-18 17:25:36 |
| R14.htm | 64738 | 2013-04-18 17:25:36 |
| R15.htm | 12560 | 2013-04-18 17:25:36 |
| R16.htm | 60231 | 2013-04-18 17:25:36 |
| R17.htm | 24605 | 2013-04-18 17:25:36 |
| R18.htm | 7989 | 2013-04-18 17:25:36 |
| R19.htm | 10201 | 2013-04-18 17:25:36 |
| R2.htm | 72163 | 2013-04-18 17:25:36 |
| R20.htm | 26626 | 2013-04-18 17:25:36 |
| R21.htm | 244381 | 2013-04-18 17:25:36 |
| R22.htm | 4945 | 2013-04-18 17:25:36 |
| R23.htm | 90487 | 2013-04-18 17:25:36 |
| R24.htm | 34862 | 2013-04-18 17:25:36 |
| R25.htm | 10546 | 2013-04-18 17:25:36 |
| R26.htm | 12036 | 2013-04-18 17:25:36 |
| R27.htm | 57908 | 2013-04-18 17:25:36 |
| R28.htm | 19555 | 2013-04-18 17:25:36 |
| R29.htm | 19438 | 2013-04-18 17:25:36 |
| R3.htm | 36090 | 2013-04-18 17:25:36 |
| R30.htm | 236925 | 2013-04-18 17:25:36 |
| R31.htm | 4909 | 2013-04-18 17:25:36 |
| R32.htm | 153614 | 2013-04-18 17:25:36 |
| R33.htm | 40390 | 2013-04-18 17:25:36 |
| R34.htm | 13080 | 2013-04-18 17:25:36 |
| R35.htm | 22753 | 2013-04-18 17:25:36 |
| R36.htm | 23032 | 2013-04-18 17:25:36 |
| R37.htm | 8200 | 2013-04-18 17:25:36 |
| R38.htm | 40933 | 2013-04-18 17:25:36 |
| R39.htm | 119772 | 2013-04-18 17:25:36 |
| R4.htm | 161851 | 2013-04-18 17:25:36 |
| R40.htm | 58497 | 2013-04-18 17:25:36 |
| R41.htm | 181970 | 2013-04-18 17:25:36 |
| R42.htm | 26985 | 2013-04-18 17:25:36 |
| R43.htm | 32225 | 2013-04-18 17:25:36 |
| R44.htm | 31802 | 2013-04-18 17:25:36 |
| R45.htm | 52226 | 2013-04-18 17:25:36 |
| R46.htm | 18257 | 2013-04-18 17:25:36 |
| R47.htm | 22261 | 2013-04-18 17:25:36 |
| R48.htm | 18122 | 2013-04-18 17:25:36 |
| R49.htm | 33530 | 2013-04-18 17:25:36 |
| R5.htm | 4168 | 2013-04-18 17:25:36 |
| R50.htm | 30343 | 2013-04-18 17:25:36 |
| R51.htm | 23239 | 2013-04-18 17:25:36 |
| R52.htm | 30384 | 2013-04-18 17:25:36 |
| R53.htm | 5187 | 2013-04-18 17:25:36 |
| R54.htm | 20728 | 2013-04-18 17:25:36 |
| R55.htm | 47637 | 2013-04-18 17:25:36 |
| R56.htm | 47805 | 2013-04-18 17:25:36 |
| R57.htm | 65773 | 2013-04-18 17:25:36 |
| R58.htm | 13655 | 2013-04-18 17:25:36 |
| R59.htm | 6592 | 2013-04-18 17:25:36 |
| R6.htm | 160612 | 2013-04-18 17:25:36 |
| R60.htm | 31277 | 2013-04-18 17:25:36 |
| R61.htm | 13162 | 2013-04-18 17:25:36 |
| R62.htm | 14468 | 2013-04-18 17:25:36 |
| R63.htm | 11192 | 2013-04-18 17:25:36 |
| R64.htm | 18879 | 2013-04-18 17:25:36 |
| R7.htm | 53847 | 2013-04-18 17:25:36 |
| R8.htm | 6062 | 2013-04-18 17:25:36 |
| R9.htm | 4683 | 2013-04-18 17:25:36 |
| report.css | 2721 | 2013-04-18 17:25:36 |
| Show.js | 6423 | 2013-04-18 17:25:36 |