XML 52 R40.htm IDEA: XBRL DOCUMENT v3.6.0.2
Basis of Presentation and Summary of Significant Accounting Policies (Details 3) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Advertising Costs      
Advertising expense $ 91 $ 84 $ 83
Accounts Receivable and Allowance for Doubtful Accounts      
Threshold for determining accounts receivable as past due, days outstanding 30 days    
Activation and installation charges | Minimum      
Revenue Recognition      
Customer relationship period for revenue recognition 2 years    
Activation and installation charges | Maximum      
Revenue Recognition      
Customer relationship period for revenue recognition 13 years    
Qwest Communications International, Inc.      
Affiliate Transactions      
Description of related party transaction In 2015, we agreed to a plan to settle the outstanding affiliate obligations, net balance with QCII over a 30 year term. Payments will be made on a monthly basis.    
Pension, Supplemental and Other Postretirement Benefit Plans | Qwest Communications International, Inc.      
Affiliate Transactions      
Description of related party transaction   In 2015, we agreed to a plan to settle the outstanding pension and post-retirement affiliate obligations, net balance with QCII over a 30 year term. Payments will be made on a monthly basis.  
Repayments on affiliate obligation $ 97 $ 105