| 2013 | 2012 | |||||
| Non-U.S. dollar balances held by non-U.S. dollar functional currency subsidiaries | $ | 115 | $ | 81 | ||
| U.S. dollar balances held by non-U.S. dollar functional currency subsidiaries | 36 | 35 | ||||
| Non-U.S. dollar balances held by U.S. dollar functional currency subsidiaries | 18 | 20 | ||||
| U.S. dollar balances held by U.S. dollar functional currency subsidiaries | 130 | 131 | ||||
| Total | $ | 299 | $ | 267 | ||