16) Accounts receivable and other current assets

Table : Accounts receivable and other current assets 2014

Table : Accounts receivable and other current assets 2013

Table : Accounts receivable and other current assets 2012

Changes in the valuation allowance on “Accounts receivable” and “Other current assets” are as follows:

Table : Changes in the valuation allowance on “Accounts receivable” and “Other current assets”

As of December 31, 2014, the net portion of the overdue receivables included in “Accounts receivable” and “Other current assets” was $3,049 million, of which $1,382 million was due in less than 90 days, $593 million was due between 90 days and 6 months, $226 million was due between 6 and 12 months and $848 million was due after 12 months.

As of December 31, 2013, the net portion of the overdue receivables included in “Accounts receivable” and “Other current assets” was $3,812 million, of which $1,565 million was due in less than 90 days, $599 million was due between 90 days and 6 months, $754 million was due between 6 and 12 months and $894 million was due after 12 months.

As of December 31, 2012, the net portion of the overdue receivables included in “Accounts receivable” and “Other current assets” was $4,541 million, of which $2,672 million was due in less than 90 days, $896 million was due between 90 days and 6 months, $343 million was due between 6 and 12 months and $630 million was due after 12 months.