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Stock-Based Compensation - TDS excluding UScellular, Stock options (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
TDS Long-Term Incentive Plans | Stock Options | TDS |  |  |
Black Scholes valuation model assumptions |  |  |
Expected life |  | 6 years 3 months 18 days | 6 years 2 months 12 days
Expected annual volatility rate |  | 36.60% | 35.00%
Dividend yield |  | 2.80% | 3.60%
Risk-free interest rate |  | 1.10% | 0.50%
Common Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period | 3 years |  |
Common Shares | TDS Long-Term Incentive Plans | Stock Options |  |  |
Stock compensation, other information |  |  |
Aggregate intrinsic value, options exercised |  |  | $ 0
Common Shares | TDS Long-Term Incentive Plans | Stock Options | TDS |  |  |
Stock compensation, number of shares |  |  |
Outstanding, beginning of period (in shares) | 4,088,000 |  |
Exercised options (in shares) | (1,000) |  |
Forfeited options (in shares) | (86,000) |  |
Expired options (in shares) | (903,000) |  |
Outstanding, end of period (in shares) | 3,098,000 | 4,088,000 |
Exercisable options, end of period (in shares) | 2,539,000 |  |
Stock compensation, other information |  |  |
Options outstanding, beginning of period - weighted average exercise price (USD per share) | $ 25.50 |  |
Options exercised, weighted average exercise price (USD per share) | 19.15 |  |
Options forfeited, weighted average exercise price (USD per share) | 22.42 |  |
Options expired, weighted average exercise price (USD per share) | 22.82 |  |
Options outstanding, end of period - weighted average exercise price (USD per share) | 26.37 | $ 25.50 |
Options exercisable, end of period - weighted average exercise price (USD per share) | $ 27.34 |  |
Aggregate intrinsic value, options outstanding | $ 0 |  |
Aggregate intrinsic value, options exercisable | $ 0 |  |
Weighted average remaining contractual life, outstanding | 4 years 2 months 12 days |  |
Weighted average remaining contractual life, exercisable | 3 years 3 months 18 days |  |
Options granted, weighted average grant date fair value |  | $ 6.86 | $ 4.24
Common Shares | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 10 years |  |
Common Shares | Maximum | TDS Long-Term Incentive Plans | Stock Options |  |  |
Stock compensation, other information |  |  |
Aggregate intrinsic value, options exercised | $ 1 | $ 1 |
Terminated Employees | Common Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 30 days |  |
Retired Employees | Common Shares | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 90 days |  |
Retired Employees | Common Shares | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 1 year |  |

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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