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Consolidated Balance Sheet Parenthetical - USD ($) shares in Millions, $ in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Accounts receivable |  |
Customer and agent allowances | $ 65 | $ 61
Other allowances | 2 | 2
Other intangible assets |  |
Other intangible assets accumulated amortization | $ 155 | $ 142
TDS shareholders' equity |  |
Authorized shares | 290 | 290
Issued shares | 133 | 133
Outstanding shares | 112 | 111
Variable Interest Entities VIEs |  |
Total VIE assets that can be used to settle only the VIEs' obligations | $ 793 | $ 765
Total VIE liabilities for which creditors have no recourse | $ 17 | $ 21
Series A Common Shares |  |
TDS shareholders' equity |  |
Authorized shares | 25 | 25
Issued shares | 7 | 7
Outstanding shares | 7 | 7
Par value per share | $ 0.01 | $ 0.01
Common Shares |  |
TDS shareholders' equity |  |
Authorized shares | 265 | 265
Issued shares | 126 | 126
Outstanding shares | 105 | 104
Par value per share | $ 0.01 | $ 0.01
Treasury shares at cost | 21 | 22

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