Basis of Presentation	6 Months Ended
Jun. 30, 2016
Basis of Presentation [Abstract]
Basis of Presentation	United States Cellular Corporation Notes to Consolidated Financial Statements Note 1 Basis of Presentation United States Cellular Corporation (“U.S. Cellular”), a Delaware corporation, is an 83%-owned subsidiary of Telephone and Data Systems, Inc. (“TDS”). The accounting policies of U.S. Cellular conform to accounting principles generally accepted in the United States of America (“GAAP”) as set forth in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”). The consolidated financial statements include the accounts of U.S. Cellular, subsidiaries in which it has a controlling financial interest, general partnerships in which U.S. Cellular has a majority partnership interest and certain entities in which U.S. Cellular has a variable interest that require consolidation under GAAP. All material intercompany accounts and transactions have been eliminated. The unaudited consolidated financial statements included herein have been prepared by U.S. Cellular pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. However, U.S. Cellular believes that the disclosures included herein are adequate to make the information presented not misleading. Calculated amounts and percentages are based on the underlying actual numbers rather than the numbers rounded to millions as presented. These unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in U.S. Cellular’s Annual Report on Form 10-K (“Form 10-K”) for the year ended December 31, 2015. The accompanying unaudited consolidated financial statements contain all adjustments (consisting of normal recurring items, unless otherwise disclosed) necessary for the fair statement of U.S. Cellular’s financial position as of June 30, 2016 and December 31, 2015, its results of operations for the three and six months ended June 30, 2016 and 2015, and its cash flows and changes in equity for the six months ended June 30, 2016 and 2015. The Consolidated Statement of Comprehensive Income was not included because comprehensive income for the three and six months ended June 30, 2016 and 2015 equaled net income. These results are not necessarily indicative of the results to be expected for the full year. Recently Issued Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) and has since amended the standard with Accounting Standards Update 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, Accounting Standards Update 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net), Accounting Standards Update 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing, and Accounting Standards Update 2016-12, Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients. These standards replace existing revenue recognition rules with a single comprehensive model to use in accounting for revenue arising from contracts with customers. U.S. Cellular is required to adopt ASU 2014-09, as amended, on January 1, 2018. Early adoption as of January 1, 2017 is permitted; however, U.S. Cellular does not intend to adopt early. ASU 2014-09, as amended, impacts U.S. Cellular’s revenue recognition related to the allocation of contract revenues between various services and equipment, and the timing of when those revenues are recognized. In addition, the new requirements require deferral of incremental contract acquisition and fulfillment costs and subsequent expense recognition over the contract period or expected customer life. U.S. Cellular will transition to the new standard under one of the two adoption methods available for implementation. Under one method, the guidance is applied retrospectively to contracts for each reporting period presented, subject to allowable practical expedients. Under the other method, a cumulative effect adjustment is recognized upon adoption and the guidance is applied prospectively. U.S. Cellular is currently evaluating the guidance, developing its implementation plan, and evaluating the effects ASU 2014-09, as amended, will have on its financial position and results of operations upon adoption. In August 2014, the FASB issued Accounting Standards Update 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (“ASU 2014-15”). ASU 2014-15 requires U.S. Cellular to assess its ability to continue as a going concern each interim and annual reporting period and provide certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern, including management’s plan to alleviate the substantial doubt. U.S. Cellular is required to adopt the provisions of ASU 2014-15 for the annual period ending December 31, 2016, but early adoption is permitted. The adoption of ASU 2014-15 will not impact U.S. Cellular’s financial position or results of operations but may impact future disclosures. In July 2015, the FASB issued Accounting Standards Update 2015-11, Inventory: Simplifying the Measurement of Inventory (“ASU 2015-11”), which requires inventory to be measured at the lower of cost or net realizable value. U.S. Cellular is required to adopt ASU 2015-11 on January 1, 2017. Early adoption is permitted. The adoption of ASU 2015-11 is not expected to have a significant impact on U.S. Cellular’s financial position or results of operations. In January 2016, the FASB issued Accounting Standards Update 2016-01, Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This ASU introduces changes to current accounting for equity investments and financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. U.S. Cellular is required to adopt ASU 2016-01 on January 1, 2018. Certain provisions are eligible for early adoption. U.S. Cellular is evaluating the effects that adoption of ASU 2016-01 will have on its financial position and results of operations. In February 2016, the FASB issued Accounting Standards Update 2016-02, Leases (“ASU 2016-02”). ASU 2016-02 requires lessees to record a right-of-use asset and lease liability for almost all leases. This ASU does not substantially impact lessor accounting. U.S. Cellular is required to adopt ASU 2016-02 on January 1, 2019. Early adoption is permitted. Upon adoption of ASU 2016-02, U.S. Cellular expects a substantial increase to assets and liabilities on its balance sheet. U.S. Cellular is still evaluating the full effects that adoption of ASU 2016-02 will have on its financial position and results of operations. In March 2016, the FASB issued Accounting Standards Update 2016-04, Liabilities – Extinguishments of Liabilities: Recognition of Breakage from Certain Prepaid Stored-Value Products (“ASU 2016-04”). ASU 2016-04 requires companies that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage (i.e., the value that is ultimately not redeemed by the consumer) in a way that is consistent with how it will be recognized under the new revenue recognition standard. U.S. Cellular is required to adopt ASU 2016-04 on January 1, 2018. Early adoption is permitted. The adoption of ASU 2016-04 is not expected to have a significant impact on U.S. Cellular’s financial position or results of operations. In March 2016, the FASB issued Accounting Standards Update 2016-09, Compensation – Stock Compensation: Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”). ASU 2016-09 intends to simplify the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. U.S. Cellular is required to adopt ASU 2016-09 on January 1, 2017. Early adoption is permitted. U.S. Cellular is evaluating the effects that adoption of ASU 2016-09 will have on its financial position, results of operations and cash flows. In June 2016, the FASB issued Accounting Standards Update 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 requires entities to use a new forward-looking, expected loss model to estimate credit losses. It also requires additional disclosure relating to the credit quality of trade and other receivables, including information relating to management’s estimate of credit allowances. U.S. Cellular is required to adopt ASU 2016-13 on January 1, 2020. Early adoption as of January 1, 2019 is permitted. U.S. Cellular is evaluating the effects that adoption of ASU 2016-13 will have on its financial position, results of operations and disclosures. Amounts Collected from Customers and Remitted to Governmental Authorities U.S. Cellular records amounts collected from customers and remitted to governmental authorities net within a tax liability account if the tax is assessed upon the customer and U.S. Cellular merely acts as an agent in collecting the tax on behalf of the imposing governmental authority. If the tax is assessed upon U.S. Cellular, then amounts collected from customers as recovery of the tax are recorded in Service revenues and amounts remitted to governmental authorities are recorded in Selling, general and administrative expenses in the Consolidated Statement of Operations. The amounts recorded gross in revenues that are billed to customers and remitted to governmental authorities totaled $16 million and $34 million for the three and six months ended June 30, 2016, respectively, and $20 million and $41 million for the three and six months ended June 30, 2015, respectively.

United States Cellular Corporation

Notes to Consolidated Financial Statements

Note 1 Basis of Presentation

United States Cellular Corporation (“U.S. Cellular”), a Delaware corporation, is an 83%-owned subsidiary of Telephone and Data Systems, Inc. (“TDS”).

The accounting policies of U.S. Cellular conform to accounting principles generally accepted in the United States of America (“GAAP”) as set forth in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”). The consolidated financial statements include the accounts of U.S. Cellular, subsidiaries in which it has a controlling financial interest, general partnerships in which U.S. Cellular has a majority partnership interest and certain entities in which U.S. Cellular has a variable interest that require consolidation under GAAP. All material intercompany accounts and transactions have been eliminated.

The unaudited consolidated financial statements included herein have been prepared by U.S. Cellular pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. However, U.S. Cellular believes that the disclosures included herein are adequate to make the information presented not misleading. Calculated amounts and percentages are based on the underlying actual numbers rather than the numbers rounded to millions as presented. These unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in U.S. Cellular’s Annual Report on Form 10-K (“Form 10-K”) for the year ended December 31, 2015.

The accompanying unaudited consolidated financial statements contain all adjustments (consisting of normal recurring items, unless otherwise disclosed) necessary for the fair statement of U.S. Cellular’s financial position as of June 30, 2016 and December 31, 2015, its results of operations for the three and six months ended June 30, 2016 and 2015, and its cash flows and changes in equity for the six months ended June 30, 2016 and 2015. The Consolidated Statement of Comprehensive Income was not included because comprehensive income for the three and six months ended June 30, 2016 and 2015 equaled net income. These results are not necessarily indicative of the results to be expected for the full year.

Recently Issued Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) and has since amended the standard with Accounting Standards Update 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, Accounting Standards Update 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net), Accounting Standards Update 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing, and Accounting Standards Update 2016-12, Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients. These standards replace existing revenue recognition rules with a single comprehensive model to use in accounting for revenue arising from contracts with customers. U.S. Cellular is required to adopt ASU 2014-09, as amended, on January 1, 2018. Early adoption as of January 1, 2017 is permitted; however, U.S. Cellular does not intend to adopt early. ASU 2014-09, as amended, impacts U.S. Cellular’s revenue recognition related to the allocation of contract revenues between various services and equipment, and the timing of when those revenues are recognized. In addition, the new requirements require deferral of incremental contract acquisition and fulfillment costs and subsequent expense recognition over the contract period or expected customer life. U.S. Cellular will transition to the new standard under one of the two adoption methods available for implementation. Under one method, the guidance is applied retrospectively to contracts for each reporting period presented, subject to allowable practical expedients. Under the other method, a cumulative effect adjustment is recognized upon adoption and the guidance is applied prospectively. U.S. Cellular is currently evaluating the guidance, developing its implementation plan, and evaluating the effects ASU 2014-09, as amended, will have on its financial position and results of operations upon adoption.

In August 2014, the FASB issued Accounting Standards Update 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (“ASU 2014-15”). ASU 2014-15 requires U.S. Cellular to assess its ability to continue as a going concern each interim and annual reporting period and provide certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern, including management’s plan to alleviate the substantial doubt. U.S. Cellular is required to adopt the provisions of ASU 2014-15 for the annual period ending December 31, 2016, but early adoption is permitted. The adoption of ASU 2014-15 will not impact U.S. Cellular’s financial position or results of operations but may impact future disclosures.

In July 2015, the FASB issued Accounting Standards Update 2015-11, Inventory: Simplifying the Measurement of Inventory (“ASU 2015-11”), which requires inventory to be measured at the lower of cost or net realizable value. U.S. Cellular is required to adopt ASU 2015-11 on January 1, 2017. Early adoption is permitted. The adoption of ASU 2015-11 is not expected to have a significant impact on U.S. Cellular’s financial position or results of operations.

In January 2016, the FASB issued Accounting Standards Update 2016-01, Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This ASU introduces changes to current accounting for equity investments and financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. U.S. Cellular is required to adopt ASU 2016-01 on January 1, 2018. Certain provisions are eligible for early adoption. U.S. Cellular is evaluating the effects that adoption of ASU 2016-01 will have on its financial position and results of operations.

In February 2016, the FASB issued Accounting Standards Update 2016-02, Leases (“ASU 2016-02”). ASU 2016-02 requires lessees to record a right-of-use asset and lease liability for almost all leases. This ASU does not substantially impact lessor accounting. U.S. Cellular is required to adopt ASU 2016-02 on January 1, 2019. Early adoption is permitted. Upon adoption of ASU 2016-02, U.S. Cellular expects a substantial increase to assets and liabilities on its balance sheet. U.S. Cellular is still evaluating the full effects that adoption of ASU 2016-02 will have on its financial position and results of operations.

In March 2016, the FASB issued Accounting Standards Update 2016-04, Liabilities – Extinguishments of Liabilities: Recognition of Breakage from Certain Prepaid Stored-Value Products (“ASU 2016-04”). ASU 2016-04 requires companies that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage (i.e., the value that is ultimately not redeemed by the consumer) in a way that is consistent with how it will be recognized under the new revenue recognition standard. U.S. Cellular is required to adopt ASU 2016-04 on January 1, 2018. Early adoption is permitted. The adoption of ASU 2016-04 is not expected to have a significant impact on U.S. Cellular’s financial position or results of operations.

In March 2016, the FASB issued Accounting Standards Update 2016-09, Compensation – Stock Compensation: Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”). ASU 2016-09 intends to simplify the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. U.S. Cellular is required to adopt ASU 2016-09 on January 1, 2017. Early adoption is permitted. U.S. Cellular is evaluating the effects that adoption of ASU 2016-09 will have on its financial position, results of operations and cash flows.

In June 2016, the FASB issued Accounting Standards Update 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 requires entities to use a new forward-looking, expected loss model to estimate credit losses. It also requires additional disclosure relating to the credit quality of trade and other receivables, including information relating to management’s estimate of credit allowances. U.S. Cellular is required to adopt ASU 2016-13 on January 1, 2020. Early adoption as of January 1, 2019 is permitted. U.S. Cellular is evaluating the effects that adoption of ASU 2016-13 will have on its financial position, results of operations and disclosures.

Amounts Collected from Customers and Remitted to Governmental Authorities

U.S. Cellular records amounts collected from customers and remitted to governmental authorities net within a tax liability account if the tax is assessed upon the customer and U.S. Cellular merely acts as an agent in collecting the tax on behalf of the imposing governmental authority. If the tax is assessed upon U.S. Cellular, then amounts collected from customers as recovery of the tax are recorded in Service revenues and amounts remitted to governmental authorities are recorded in Selling, general and administrative expenses in the Consolidated Statement of Operations. The amounts recorded gross in revenues that are billed to customers and remitted to governmental authorities totaled $16 million and $34 million for the three and six months ended June 30, 2016, respectively, and $20 million and $41 million for the three and six months ended June 30, 2015, respectively.