$CCI
CROWN CASTLE INC. Stock $cci

$cci Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000105147021000031 Filed on February 22, 2021

Income Statement

Concept	2019 Q4	2018 Q4	2018
Revenue	$1.426B	$1.406B	$5.370B
YoY Change	1.42%	13.57%	26.2%
Cost Of Revenue	$484.0M	$135.0M	$434.0M
YoY Change	258.52%	-67.7%	8.77%
Gross Profit	$942.0M	$1.271B	$4.936B
YoY Change	-25.89%	76.63%	28.01%
Gross Profit Margin	66.06%	90.4%	91.92%
Selling, General & Admin	$157.0M	$145.0M	$563.0M
YoY Change	8.28%	14.35%	32.16%
% of Gross Profit	16.67%	11.41%	11.41%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$397.0M	$389.0M	$1.100B
YoY Change	2.06%	7.76%	20.35%
% of Gross Profit	42.14%	30.61%	22.29%
Operating Expenses	$554.0M	$145.0M	$563.0M
YoY Change	282.07%	-70.26%	32.16%
Operating Profit	$379.0M	$367.0M	$1.383B
YoY Change	3.27%	37.45%	43.02%
Interest Expense	-$172.0M	-$166.0M	-$637.0M
YoY Change	3.61%	5.2%
% of Operating Profit	-45.38%	-45.23%	-46.06%
Other Income/Expense, Net	$7.000M	$1.000M	$1.000M
YoY Change	600.0%	-16.67%	0.0%
Pretax Income	$214.0M	$170.0M	$618.0M
YoY Change	25.88%	395.63%	66.13%
Income Tax	-$6.000M	-$5.000M	-$19.00M
% Of Pretax Income	-2.8%	-2.94%	-3.07%
Net Earnings	$208.0M	$185.0M	$622.0M
YoY Change	12.43%	88.78%	39.92%
Net Earnings / Revenue	14.59%	13.16%	11.58%
Basic Earnings Per Share	$0.43	$0.42	$1.23
Diluted Earnings Per Share	$0.43	$0.42	$1.23
COMMON SHARES
Basic Shares Outstanding	415.8M shares	415.0M shares	413.0M shares
Diluted Shares Outstanding		417.0M shares	415.0M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments	$196.0M	$277.0M	$277.0M
YoY Change	-29.24%	-11.78%	-11.78%
Cash & Equivalents	$196.0M	$277.0M	$277.0M
Short-Term Investments
Other Short-Term Assets	$168.0M	$148.0M	$451.0M
YoY Change	13.51%	6.47%	6.87%
Inventory
Prepaid Expenses	$107.0M	$172.0M
Receivables	$596.0M	$501.0M	$501.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.204B	$1.229B	$1.229B
YoY Change	-2.03%	8.38%	8.38%
LONG-TERM ASSETS
Property, Plant & Equipment	$14.67B	$13.65B	$13.65B
YoY Change	7.42%	5.57%	5.57%
Goodwill	$10.08B	$10.08B
YoY Change	0.0%	0.57%
Intangibles	$4.836B	$5.516B
YoY Change	-12.33%	-7.48%
Long-Term Investments
YoY Change
Other Assets	$116.0M	$920.0M	$920.0M
YoY Change	-87.39%	4.66%	4.66%
Total Long-Term Assets	$37.25B	$31.53B	$31.53B
YoY Change	18.14%	1.41%	1.41%
TOTAL ASSETS
Total Short-Term Assets	$1.204B	$1.229B	$1.229B
Total Long-Term Assets	$37.25B	$31.53B	$31.53B
Total Assets	$38.46B	$32.76B	$32.76B
YoY Change	17.38%	1.65%	1.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$334.0M	$313.0M	$313.0M
YoY Change	6.71%	25.7%	25.7%
Accrued Expenses	$829.0M	$499.0M	$499.0M
YoY Change	66.13%	5.94%	5.94%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$100.0M	$107.0M	$107.0M
YoY Change	-6.54%	-6.96%	-6.96%
Total Short-Term Liabilities	$1.920B	$1.506B	$1.506B
YoY Change	27.49%	16.56%	16.56%
LONG-TERM LIABILITIES
Long-Term Debt	$18.02B	$16.58B	$16.58B
YoY Change	8.72%	3.31%	3.31%
Other Long-Term Liabilities	$2.516B	$3.110B	$3.110B
YoY Change	-19.1%	21.77%	21.77%
Total Long-Term Liabilities	$2.516B	$3.110B	$19.69B
YoY Change	-19.1%	21.77%	5.84%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.920B	$1.506B	$1.506B
Total Long-Term Liabilities	$2.516B	$3.110B	$19.69B
Total Liabilities	$27.97B	$21.19B	$21.19B
YoY Change	31.98%	6.54%	6.54%
SHAREHOLDERS EQUITY
Retained Earnings	-$7.365B	-$6.195B
YoY Change	18.89%	25.94%
Common Stock	$4.000M	$4.000M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$10.49B	$11.57B	$11.57B
YoY Change
Total Liabilities & Shareholders Equity	$38.46B	$32.76B	$32.76B
YoY Change	17.38%	1.65%	1.65%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	$208.0M	$185.0M	$622.0M
YoY Change	12.43%	88.78%	39.92%
Depreciation, Depletion And Amortization	$397.0M	$389.0M	$1.100B
YoY Change	2.06%	7.76%	20.35%
Cash From Operating Activities	$808.0M	$725.0M	$2.500B
YoY Change	11.45%	17.12%	23.03%
INVESTING ACTIVITIES
Capital Expenditures	-$520.0M	-$498.0M	-$1.739B
YoY Change	4.42%	36.44%	42.89%
Acquisitions			$42.00M
YoY Change			-100.45%
Other Investing Activities	-$12.00M	-$14.00M	-$12.00M
YoY Change	-14.29%	-99.8%	140.0%
Cash From Investing Activities	-$532.0M	-$512.0M	-$1.793B
YoY Change	3.91%	-93.18%	-82.89%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$34.00M
YoY Change			-247.83%
Debt Paid & Issued, Net			$2.346B
YoY Change
Cash From Financing Activities	-263.0M	-253.0M	-$733.0M
YoY Change	3.95%	-151.32%	-108.95%
NET CHANGE
Cash From Operating Activities	808.0M	725.0M	$2.500B
Cash From Investing Activities	-532.0M	-512.0M	-$1.793B
Cash From Financing Activities	-263.0M	-253.0M	-$733.0M
Net Change In Cash	13.00M	-40.00M	-$26.00M
YoY Change	-132.5%	-99.37%	-89.92%
FREE CASH FLOW
Cash From Operating Activities	$808.0M	$725.0M	$2.500B
Capital Expenditures	-$520.0M	-$498.0M	-$1.739B
Free Cash Flow	$1.328B	$1.223B	$4.239B
YoY Change	8.59%	24.29%	30.47%

Facts In Submission

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CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
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CY2020	dei	Entity File Number EntityFileNumber	001-16441
CY2020	dei	Entity Registrant Name EntityRegistrantName	CROWN CASTLE INTERNATIONAL CORP
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	76-0470458
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CY2020	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
CY2020	dei	Trading Symbol TradingSymbol	CCI
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	1000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1057000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	860000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	621000000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1527000000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.80
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.35
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	423000000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	416000000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	413000000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	425000000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	418000000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	415000000	shares
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1056000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	860000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	622000000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1608000000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1572000000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6000000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1000000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-95000000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2000000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-106000000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	7000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	138000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	117000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	103000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	74000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	19000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	26000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2000000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	5000000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2000000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	31000000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	21000000	USD
CY2018	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	16000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-77000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	19000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	37000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-65000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	254000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	271000000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	166000000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-96000000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-105000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	15000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-71000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-114000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3055000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2698000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2500000000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1624000000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2057000000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1739000000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	107000000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	17000000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	42000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-10000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-7000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-12000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1741000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2081000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1793000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3733000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1894000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2742000000	USD
CY2020	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	105000000	USD
CY2019	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	86000000	USD
CY2018	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	105000000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2490000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	12000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2346000000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2430000000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2110000000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1820000000	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2665000000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2660000000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1725000000	USD
CY2020	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	130000000	USD
CY2019	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	155000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	0	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	38000000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	24000000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	31000000	USD
CY2020	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
CY2019	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
CY2018	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	841000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	76000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	44000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	34000000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2105000000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1912000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1782000000	USD
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	85000000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	113000000	USD
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	113000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1271000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-692000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-733000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	43000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-75000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-26000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	0	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	0	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	338000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	413000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	440000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	381000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	338000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	413000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11925000000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	116000000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	34000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1000000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1785000000	USD
CY2018	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	113000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	622000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11571000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11571000000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	132000000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	44000000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1917000000	USD
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	113000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	860000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10489000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10489000000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	154000000	USD
CY2020	cci	Revenue Recognition Noncancelable Lease Term RevenueRecognitionNoncancelableLeaseTerm	five to 15 years
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	76000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1000000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	2106000000	USD
CY2020	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	57000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	1056000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9461000000	USD
CY2020	cci	Capitalized Labor Costs CapitalizedLaborCosts	270000000	USD
CY2019	cci	Capitalized Labor Costs CapitalizedLaborCosts	246000000	USD
CY2018	cci	Capitalized Labor Costs CapitalizedLaborCosts	212000000	USD
CY2020	cci	Revenue Recognitionfor Fiber Solutions Tenants RevenueRecognitionforFiberSolutionsTenants	three to 20 years
CY2020	us-gaap	Revenue Performance Obligation Description Of Payment Terms RevenuePerformanceObligationDescriptionOfPaymentTerms	45 to 60 days
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2900000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2800000000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	575000000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2700000000	USD
CY2020	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P20Y
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	510000000	USD
CY2020	cci	Employee Severance Payments EmployeeSeverancePayments	20000000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	21000000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	17000000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	20000000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15000000	USD
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	0	USD
CY2020	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	683000000	USD
CY2019	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	682000000	USD
CY2018	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	635000000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	23000000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	21000000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	0	USD
CY2018	us-gaap	Interest Expense Other InterestExpenseOther	1000000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	689000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	747000000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	683000000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	642000000	USD
CY2020	cci	Percentage Of Tax Position That Is Likely Of Being Realized Upon Ultimate Settlement PercentageOfTaxPositionThatIsLikelyOfBeingRealizedUponUltimateSettlement	0.50
CY2020	us-gaap	Profit Loss ProfitLoss	1056000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	860000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	622000000	USD
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	57000000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	113000000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	113000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	999000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	509000000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	423000000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	416000000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	413000000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	425000000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	418000000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	415000000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.80
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.35
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.93
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.58
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.28
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	4354000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	4153000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	3564000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	2875000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	2380000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	9560000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	26886000000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	26886000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	25965000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	24334000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	10803000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	9668000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15162000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	14666000000	USD
CY2020	us-gaap	Depreciation Depreciation	1200000000	USD
CY2019	us-gaap	Depreciation Depreciation	1100000000	USD
CY2018	us-gaap	Depreciation Depreciation	1100000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	7940000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3507000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4433000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	7904000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3068000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4836000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	439000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	428000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	445000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	444000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	444000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	442000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	393000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	371000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2379000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2516000000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	18000000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	15000000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	14000000	USD
CY2020Q4	us-gaap	Below Market Lease Amortization Income Year Three BelowMarketLeaseAmortizationIncomeYearThree	45000000	USD
CY2020Q4	us-gaap	Below Market Lease Amortization Income Year Four BelowMarketLeaseAmortizationIncomeYearFour	41000000	USD
CY2020Q4	us-gaap	Below Market Lease Amortization Income After Year Five BelowMarketLeaseAmortizationIncomeAfterYearFive	33000000	USD
CY2020Q4	cci	Estimated Future Undiscounted Cash Flows Expected To Be Paid Relating To Asset Retirement Obligations EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations	1000000000.0	USD
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CY2020	us-gaap	Amortization Of Below Market Lease AmortizationOfBelowMarketLease	58000000	USD
CY2019	us-gaap	Amortization Of Below Market Lease AmortizationOfBelowMarketLease	65000000	USD
CY2018	us-gaap	Amortization Of Below Market Lease AmortizationOfBelowMarketLease	69000000	USD
CY2020Q4	us-gaap	Below Market Lease Amortization Income Next Twelve Months BelowMarketLeaseAmortizationIncomeNextTwelveMonths	53000000	USD
CY2020Q4	us-gaap	Below Market Lease Amortization Income Year Two BelowMarketLeaseAmortizationIncomeYearTwo	48000000	USD
CY2020Q4	cci	Accrued Payrolland Other Compensation AccruedPayrollandOtherCompensation	192000000	USD
CY2019Q4	cci	Accrued Payrolland Other Compensation AccruedPayrollandOtherCompensation	174000000	USD
CY2020Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	19280000000	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	18121000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	129000000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	100000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	19151000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	18021000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	415000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	154000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3608000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2941000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	525000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	11780000000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	19423000000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	143000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	19280000000	USD
CY2020	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	2400000000	USD
CY2020	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	2490000000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-95000000	USD
CY2019	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	12000000	USD
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	12000000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2000000	USD
CY2018	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	2250000000	USD
CY2018	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	2346000000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-106000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	232000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	232000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	196000000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	149000000	USD
CY2020Q4	cci	Restricted Cash Fair Value Disclosure RestrictedCashFairValueDisclosure	149000000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	142000000	USD
CY2019Q4	cci	Restricted Cash Fair Value Disclosure RestrictedCashFairValueDisclosure	142000000	USD
CY2020Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	19280000000	USD
CY2020Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	21302000000	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	18121000000	USD
CY2019Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	19170000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1046000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	850000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	618000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	30000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	31000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	23000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1076000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	881000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	641000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-6000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-6000000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-5000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	7000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5000000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5000000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17000000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	19000000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	3000000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	2000000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	2000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2000000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-21000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-19000000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	225000000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	185000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	135000000	USD
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	0	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1000000	USD
CY2020	cci	Taxadjustmentrelatedto Rei Toperations TaxadjustmentrelatedtoREIToperations	219000000	USD
CY2019	cci	Taxadjustmentrelatedto Rei Toperations TaxadjustmentrelatedtoREIToperations	178000000	USD
CY2018	cci	Taxadjustmentrelatedto Rei Toperations TaxadjustmentrelatedtoREIToperations	128000000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5000000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4000000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	9000000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	10000000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	9000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-21000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-19000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	7000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	7000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	14000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	3000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	3000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	15000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	18000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	3000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	3000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	6000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	5000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	29000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	31000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	15000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	18000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	15000000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	15000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	18000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	18000000	USD
CY2018Q4	cci	Atthe Market Stock Offering Programaggregatevalueofcommonstock AttheMarketStockOfferingProgramaggregatevalueofcommonstock	750000000	USD
CY2020Q4	cci	Availability Under Atm AvailabilityUnderATM	750000000	USD
CY2020	cci	Conversionfactor6.785 Mandatory Convertible Preferred Stock Conversionfactor6.785MandatoryConvertiblePreferredStock	8.8043	shares
CY2020Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	504000000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2020Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	504000000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	521000000	USD
CY2020Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.33
CY2019Q4	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	577000000	USD
CY2019Q4	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	17.1875
CY2020Q1	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	28000000	USD
CY2020Q1	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	17.1875
CY2020Q2	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	28000000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	17.1875
CY2020Q3	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	28000000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2020Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.33
CY2019Q4	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	17.1875
CY2020Q1	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	17.1875
CY2020Q2	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	17.1875
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	500000	shares
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	400000	shares
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	300000	shares
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	76000000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	44000000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	34000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	8000000	shares
CY2020	cci	Vesting Period VestingPeriod	three
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.014
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.025
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.024
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.19
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.18
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	135000000	USD
CY2018	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	1000000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.18
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.035
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.040
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.038
CY2020	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	1000000	shares
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	220000000	USD
CY2019	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	1000000	shares
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	107000000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	133000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	116000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	108000000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	640000000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	632000000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	153000000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	149000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	793000000	USD
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CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2300000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2100000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	211000000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	216000000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P17Y
CY2020Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.037
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	546000000	USD
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CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	538000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	532000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	518000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5842000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	8519000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2382000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	6137000000	USD
CY2020Q4	cci	Tower Count TowerCount	40000
CY2020Q4	cci	Fiber Miles FiberMiles	80000
CY2020	cci	Amortization Of Prepaid Lease Purchase Price Adjustments AmortizationOfPrepaidLeasePurchasePriceAdjustments	18000000	USD
CY2019	cci	Amortization Of Prepaid Lease Purchase Price Adjustments AmortizationOfPrepaidLeasePurchasePriceAdjustments	20000000	USD
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CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	538000000	USD
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CY2018	us-gaap	Operating Lease Payments OperatingLeasePayments	0	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	653000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	661000000	USD
CY2018	us-gaap	Interest Paid InterestPaid	619000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	19000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	17000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	627000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	431000000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020	cci	Increase Decreaseinaccountspayableforpurchasesofpropertyandequipment IncreaseDecreaseinaccountspayableforpurchasesofpropertyandequipment	27000000	USD
CY2019	cci	Increase Decreaseinaccountspayableforpurchasesofpropertyandequipment IncreaseDecreaseinaccountspayableforpurchasesofpropertyandequipment	2000000	USD
CY2018	cci	Increase Decreaseinaccountspayableforpurchasesofpropertyandequipment IncreaseDecreaseinaccountspayableforpurchasesofpropertyandequipment	29000000	USD
CY2020	cci	Purchaseofpropertyandequipmentundercapitalleasesandinstallmentpurchases Purchaseofpropertyandequipmentundercapitalleasesandinstallmentpurchases	33000000	USD
CY2019	cci	Purchaseofpropertyandequipmentundercapitalleasesandinstallmentpurchases Purchaseofpropertyandequipmentundercapitalleasesandinstallmentpurchases	33000000	USD
CY2018	cci	Purchaseofpropertyandequipmentundercapitalleasesandinstallmentpurchases Purchaseofpropertyandequipmentundercapitalleasesandinstallmentpurchases	40000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	232000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	277000000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	144000000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	137000000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	131000000	USD
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	5000000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	5000000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	5000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	381000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	338000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	413000000	USD
CY2020Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	3295000000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	25441000000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	10478000000	USD
CY2020Q4	cci	Tower Count TowerCount	40000
CY2020Q4	cci	Fiber Miles FiberMiles	80000
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	23854000000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	21840000000	USD
CY2020	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	68000000	USD
CY2019	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	4000000	USD
CY2020	cci	Communications Infrastructure Construction CommunicationsInfrastructureConstruction	1438000000	USD
CY2019	cci	Communications Infrastructure Construction CommunicationsInfrastructureConstruction	1878000000	USD
CY2020	cci	Purchaseoflandinterests Purchaseoflandinterests	64000000	USD
CY2019	cci	Purchaseoflandinterests Purchaseoflandinterests	53000000	USD
CY2020	us-gaap	Real Estate Improvements RealEstateImprovements	66000000	USD
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	84000000	USD
CY2020	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	47000000	USD
CY2019	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	101000000	USD
CY2020	cci	Real Estate Period Additionsto Cost RealEstatePeriodAdditionstoCost	1683000000	USD
CY2019	cci	Real Estate Period Additionsto Cost RealEstatePeriodAdditionstoCost	2120000000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	96000000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	45000000	USD
CY2020	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	0	USD
CY2019	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	61000000	USD
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	96000000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	106000000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	25441000000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	23854000000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	9382000000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	8338000000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	1114000000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	1087000000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	1114000000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	1087000000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	18000000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	24000000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	19000000	USD
CY2020	cci	Real Estate Period Deductionsto Accumulated Depreciation RealEstatePeriodDeductionstoAccumulatedDepreciation	18000000	USD
CY2019	cci	Real Estate Period Deductionsto Accumulated Depreciation RealEstatePeriodDeductionstoAccumulatedDepreciation	43000000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	10478000000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	9382000000	USD

Files In Submission

Name	View Source	Status
0001051470-21-000031-index-headers.html	Edgar Link	pending
0001051470-21-000031-index.html	Edgar Link	pending
0001051470-21-000031.txt	Edgar Link	pending
0001051470-21-000031-xbrl.zip	Edgar Link	pending
cci-20201231.htm	Edgar Link	pending
cci-20201231.xsd	Edgar Link	pending
cci-20201231_cal.xml	Edgar Link	unprocessable
cci-20201231_def.xml	Edgar Link	unprocessable
cci-20201231_g1.jpg	Edgar Link	pending
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cci-20201231_htm.xml	Edgar Link	completed
cci-20201231_lab.xml	Edgar Link	unprocessable
cci-20201231_pre.xml	Edgar Link	unprocessable
ex-21123120.htm	Edgar Link	pending
ex-231123120.htm	Edgar Link	pending
exhibit311123120.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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$CCI
CROWN CASTLE INC. Stock $cci

2019 Q4 Form 10-K Financial Statement

#000105147021000031 Filed on February 22, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CCI CROWN CASTLE INC. Stock $cci

2019 Q4 Form 10-K Financial Statement

#000105147021000031 Filed on February 22, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CCI
CROWN CASTLE INC. Stock $cci