$LUMN
Lumen Technologies, Inc.

2019 Q4 Form 10-K Financial Statement

#000001892620000009 Filed on February 28, 2020

View on sec.gov

Income Statement

Concept 2019 Q4 2019 2018 Q4
Revenue $5.570B $21.46B $5.778B
YoY Change -3.6% -4.97% 8.55%
Cost Of Revenue $2.257B $9.134B $1.794B
YoY Change 25.81% -8.65% -28.18%
Gross Profit $3.049B $12.32B $3.121B
YoY Change -2.31% -2.04% 10.48%
Gross Profit Margin 54.74% 57.43% 54.02%
Selling, General & Admin $992.0M $3.715B $974.0M
YoY Change 1.85% -10.8% -11.78%
% of Gross Profit 32.54% 30.14% 31.21%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $1.210B $4.829B $1.262B
YoY Change -4.12% -5.68% 5.43%
% of Gross Profit 39.69% 39.18% 40.44%
Operating Expenses $2.202B $3.715B $2.236B
YoY Change -1.52% -83.76% -2.82%
Operating Profit $847.0M -$2.726B -$1.841B
YoY Change -146.01% -578.25% -451.34%
Interest Expense -$484.0M $2.021B -$539.0M
YoY Change -10.2% -7.17% 12.06%
% of Operating Profit -57.14%
Other Income/Expense, Net -$14.00M -$2.040B -$12.00M
YoY Change 16.67% -4.36% -209.09%
Pretax Income $349.0M -$4.766B -$2.365B
YoY Change -114.76% 204.93% -4479.63%
Income Tax $126.0M $503.0M $38.00M
% Of Pretax Income 36.1%
Net Earnings $223.0M -$5.269B -$2.412B
YoY Change -109.25% 204.04% -315.94%
Net Earnings / Revenue 4.0% -24.55% -41.74%
Basic Earnings Per Share $0.21 -$4.92 -$2.26
Diluted Earnings Per Share $0.21 -$4.92 -$2.26
COMMON SHARES
Basic Shares Outstanding 1.090B shares 1.071B shares 1.081B shares
Diluted Shares Outstanding 1.071B shares

Balance Sheet

Concept 2019 Q4 2019 2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments $1.690B $1.690B $488.0M
YoY Change 246.31% 246.31% -11.43%
Cash & Equivalents $1.690B $1.690B $488.0M
Short-Term Investments
Other Short-Term Assets $819.0M $637.0M $918.0M
YoY Change -10.78% 6.52% -2.44%
Inventory $105.0M $105.0M $120.0M
Prepaid Expenses $274.0M $307.0M
Receivables $2.259B $1.907B $2.398B
Other Receivables $429.0M $429.0M $82.00M
Total Short-Term Assets $4.768B $4.768B $3.820B
YoY Change 24.82% 24.82% -8.92%
LONG-TERM ASSETS
Property, Plant & Equipment $26.08B $27.77B $26.41B
YoY Change -1.25% 5.14% -1.65%
Goodwill $21.53B $28.03B
YoY Change -23.18% -8.02%
Intangibles $9.567B
YoY Change
Long-Term Investments
YoY Change
Other Assets $2.794B $1.108B $1.192B
YoY Change 134.4% -9.03% -7.31%
Total Long-Term Assets $59.97B $59.97B $66.44B
YoY Change -9.73% -9.73% -6.97%
TOTAL ASSETS
Total Short-Term Assets $4.768B $4.768B $3.820B
Total Long-Term Assets $59.97B $59.97B $66.44B
Total Assets $64.74B $64.74B $70.26B
YoY Change -7.85% -7.85% -7.08%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $1.724B $1.724B $1.933B
YoY Change -10.81% -10.81% 24.31%
Accrued Expenses $1.808B $1.808B $1.465B
YoY Change 23.41% 23.41% 13.83%
Deferred Revenue $804.0M $832.0M
YoY Change -3.37% -6.73%
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due $2.300B $2.300B $652.0M
YoY Change 252.76% 252.76% 47.18%
Total Short-Term Liabilities $7.258B $7.258B $5.531B
YoY Change 31.22% 31.22% 13.88%
LONG-TERM LIABILITIES
Long-Term Debt $32.39B $32.39B $35.41B
YoY Change -8.51% -8.51% -5.03%
Other Long-Term Liabilities $4.108B $8.702B $2.642B
YoY Change 55.49% 25.01% 10.59%
Total Long-Term Liabilities $4.108B $41.10B $2.642B
YoY Change 55.49% -3.01% 10.59%
TOTAL LIABILITIES
Total Short-Term Liabilities $7.258B $7.258B $5.531B
Total Long-Term Liabilities $4.108B $41.10B $2.642B
Total Liabilities $11.37B $51.27B $8.173B
YoY Change 39.07% 1.67% 12.79%
SHAREHOLDERS EQUITY
Retained Earnings -$6.814B -$1.643B
YoY Change 314.73% -248.96%
Common Stock $1.090B $1.080B
YoY Change 0.93% 1.03%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $13.47B $13.47B $19.83B
YoY Change
Total Liabilities & Shareholders Equity $64.74B $64.74B $70.26B
YoY Change -7.85% -7.85% -7.08%

Cashflow Statement

Concept 2019 Q4 2019 2018 Q4
OPERATING ACTIVITIES
Net Income $223.0M -$5.269B -$2.412B
YoY Change -109.25% 204.04% -315.94%
Depreciation, Depletion And Amortization $1.210B $4.829B $1.262B
YoY Change -4.12% -5.68% 5.43%
Cash From Operating Activities $1.909B $6.680B $1.996B
YoY Change -4.36% -5.01% 69.44%
INVESTING ACTIVITIES
Capital Expenditures -$940.0M -$3.628B -$915.0M
YoY Change 2.73% 14.27% 23.15%
Acquisitions $0.00
YoY Change
Other Investing Activities $41.00M $35.00M $33.00M
YoY Change 24.24% -42.62% -100.45%
Cash From Investing Activities -$899.0M -$3.570B -$882.0M
YoY Change 1.93% 15.98% -89.0%
FINANCING ACTIVITIES
Cash Dividend Paid $1.100B
YoY Change -52.42%
Common Stock Issuance & Retirement, Net $0.00
YoY Change
Debt Paid & Issued, Net $4.157B
YoY Change 114.72%
Cash From Financing Activities -724.0M -$1.911B -1.016B
YoY Change -28.74% -52.5% -180.13%
NET CHANGE
Cash From Operating Activities 1.909B $6.680B 1.996B
Cash From Investing Activities -899.0M -$3.570B -882.0M
Cash From Financing Activities -724.0M -$1.911B -1.016B
Net Change In Cash 286.0M $1.199B 98.00M
YoY Change 191.84% -1837.68% -101.76%
FREE CASH FLOW
Cash From Operating Activities $1.909B $6.680B $1.996B
Capital Expenditures -$940.0M -$3.628B -$915.0M
Free Cash Flow $2.849B $10.31B $2.911B
YoY Change -2.13% 0.99% 51.54%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2018 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
53000000 USD
CY2018Q4 ctl Revenuefrom Contractwith Customer Allowancefor Doubtful Accounts Receivable
RevenuefromContractwithCustomerAllowanceforDoubtfulAccountsReceivable
132000000 USD
CY2019Q4 ctl Revenuefrom Contractwith Customer Allowancefor Doubtful Accounts Receivable
RevenuefromContractwithCustomerAllowanceforDoubtfulAccountsReceivable
94000000 USD
CY2019 dei Amendment Flag
AmendmentFlag
false
CY2019 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2019 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
FY
CY2019 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2019
CY2019 dei Entity Central Index Key
EntityCentralIndexKey
0000018926
CY2018Q4 us-gaap Accounts Receivable Gross
AccountsReceivableGross
2500000000 USD
CY2019Q4 us-gaap Accounts Receivable Gross
AccountsReceivableGross
2300000000 USD
CY2018 us-gaap Cash Acquired From Acquisition
CashAcquiredFromAcquisition
2300000000 USD
CY2018Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
1.00
CY2019Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
1.00
CY2018Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1600000000 shares
CY2019Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1600000000 shares
CY2018Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
1080167000 shares
CY2019Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
1090058000 shares
CY2018Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
1080167000 shares
CY2019Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
1090058000 shares
CY2017 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
78000000 USD
CY2019 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
72000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
4000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
3000000 USD
CY2019 dei Entity Voluntary Filers
EntityVoluntaryFilers
No
CY2019 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2019 dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
CY2019 dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
CY2019 dei Entity Small Business
EntitySmallBusiness
false
CY2019 dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2019 dei Entity Shell Company
EntityShellCompany
false
CY2020Q1 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
1089540310 shares
CY2018Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
2000000 shares
CY2019Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
2000000 shares
CY2018Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
7000 shares
CY2019 dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
71203
CY2019Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
7000 shares
CY2018Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
7000 shares
CY2019Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
7000 shares
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P2Y
CY2019 dei Document Type
DocumentType
10-K
CY2019 dei Document Annual Report
DocumentAnnualReport
true
CY2019 dei Document Period End Date
DocumentPeriodEndDate
2019-12-31
CY2019 dei Document Transition Report
DocumentTransitionReport
false
CY2019 dei Entity File Number
EntityFileNumber
001-7784
CY2019 dei Entity Registrant Name
EntityRegistrantName
CENTURYLINK, INC.
CY2019 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
LA
CY2019 dei Entity Tax Identification Number
EntityTaxIdentificationNumber
72-0651161
CY2019 dei City Area Code
CityAreaCode
318
CY2019 dei Entity Address Address Line1
EntityAddressAddressLine1
100 CenturyLink Drive,
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
-12000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
17000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
-50000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
6000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-60000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-45000000 USD
CY2019 dei Local Phone Number
LocalPhoneNumber
388-9000
CY2019 dei Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
Yes
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
60000000 USD
CY2019 dei Entity Address City Or Town
EntityAddressCityOrTown
Monroe,
CY2019 dei Entity Address State Or Province
EntityAddressStateOrProvince
LA
CY2019 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
4000000 USD
CY2018 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
10862000000 USD
CY2019 us-gaap Depreciation And Amortization
DepreciationAndAmortization
4829000000 USD
CY2018Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
25.00
CY2019Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
25.00
CY2019Q2 dei Entity Public Float
EntityPublicFloat
11400000000 USD
CY2019 us-gaap Revenues
Revenues
22401000000 USD
CY2018 us-gaap Revenues
Revenues
23443000000 USD
CY2017 us-gaap Revenues
Revenues
17656000000 USD
CY2019 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
10077000000 USD
CY2018 us-gaap Depreciation And Amortization
DepreciationAndAmortization
5120000000 USD
CY2017 us-gaap Depreciation And Amortization
DepreciationAndAmortization
3936000000 USD
CY2019 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
6506000000 USD
CY2017 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
8203000000 USD
CY2019 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
3715000000 USD
CY2018 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
4165000000 USD
CY2017 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
3508000000 USD
CY2017 us-gaap Net Income Loss
NetIncomeLoss
1389000000 USD
CY2018 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
2726000000 USD
CY2017 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2019 us-gaap Costs And Expenses
CostsAndExpenses
25127000000 USD
CY2018 us-gaap Costs And Expenses
CostsAndExpenses
22873000000 USD
CY2017 us-gaap Costs And Expenses
CostsAndExpenses
15647000000 USD
CY2019 us-gaap Operating Income Loss
OperatingIncomeLoss
-2726000000 USD
CY2018 us-gaap Operating Income Loss
OperatingIncomeLoss
570000000 USD
CY2017 us-gaap Operating Income Loss
OperatingIncomeLoss
2009000000 USD
CY2019 us-gaap Interest Expense
InterestExpense
2021000000 USD
CY2018 us-gaap Interest Expense
InterestExpense
2177000000 USD
CY2017 us-gaap Interest Expense
InterestExpense
1481000000 USD
CY2019 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-19000000 USD
CY2018 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
44000000 USD
CY2017 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
12000000 USD
CY2019 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-2040000000 USD
CY2018 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-2133000000 USD
CY2017 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-1469000000 USD
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-4766000000 USD
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-1563000000 USD
CY2017 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
540000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
503000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
170000000 USD
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-849000000 USD
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-5269000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2017 us-gaap Net Income Loss
NetIncomeLoss
1389000000 USD
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-4.92
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-1.63
CY2017 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.21
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-4.92
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-1.63
CY2017 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.21
CY2019 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1071441000 shares
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1065866000 shares
CY2017 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
627808000 shares
CY2019 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1071441000 shares
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1065866000 shares
CY2017 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
628693000 shares
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-5269000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2019 ctl Other Comprehensive Income Loss Pensionand Postretirement Benefit Plans Reclassification Adjustmentfor Net Gain Lossand Net Unamortized Gain Loss Arising During Period Netof Tax
OtherComprehensiveIncomeLossPensionandPostretirementBenefitPlansReclassificationAdjustmentforNetGainLossandNetUnamortizedGainLossArisingDuringPeriodNetofTax
-195000000 USD
CY2018 ctl Other Comprehensive Income Loss Pensionand Postretirement Benefit Plans Reclassification Adjustmentfor Net Gain Lossand Net Unamortized Gain Loss Arising During Period Netof Tax
OtherComprehensiveIncomeLossPensionandPostretirementBenefitPlansReclassificationAdjustmentforNetGainLossandNetUnamortizedGainLossArisingDuringPeriodNetofTax
133000000 USD
CY2018Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
4000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
21534000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
28031000000 USD
CY2019Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
2259000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
26079000000 USD
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
26408000000 USD
CY2017 ctl Other Comprehensive Income Loss Pensionand Postretirement Benefit Plans Reclassification Adjustmentfor Net Gain Lossand Net Unamortized Gain Loss Arising During Period Netof Tax
OtherComprehensiveIncomeLossPensionandPostretirementBenefitPlansReclassificationAdjustmentforNetGainLossandNetUnamortizedGainLossArisingDuringPeriodNetofTax
83000000 USD
CY2019 ctl Other Comprehensive Income Loss Pensionand Postretirement Benefit Plans Net Prior Service Credit Cost Amortization Adjustmentand Arising During Period Netof Tax
OtherComprehensiveIncomeLossPensionandPostretirementBenefitPlansNetPriorServiceCreditCostAmortizationAdjustmentandArisingDuringPeriodNetofTax
13000000 USD
CY2018 ctl Other Comprehensive Income Loss Pensionand Postretirement Benefit Plans Net Prior Service Credit Cost Amortization Adjustmentand Arising During Period Netof Tax
OtherComprehensiveIncomeLossPensionandPostretirementBenefitPlansNetPriorServiceCreditCostAmortizationAdjustmentandArisingDuringPeriodNetofTax
9000000 USD
CY2017 ctl Other Comprehensive Income Loss Pensionand Postretirement Benefit Plans Net Prior Service Credit Cost Amortization Adjustmentand Arising During Period Netof Tax
OtherComprehensiveIncomeLossPensionandPostretirementBenefitPlansNetPriorServiceCreditCostAmortizationAdjustmentandArisingDuringPeriodNetofTax
8000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
-39000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
0 USD
CY2017 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
0 USD
CY2019 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
2000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-201000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
31000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-219000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-59000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
122000000 USD
CY2019 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-5488000000 USD
CY2018 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-1792000000 USD
CY2017 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
1511000000 USD
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1690000000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
488000000 USD
CY2019Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
3000000 USD
CY2018Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
2398000000 USD
CY2019Q4 us-gaap Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
8000000 USD
CY2018Q4 us-gaap Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
12000000 USD
CY2019Q4 us-gaap Other Assets Current
OtherAssetsCurrent
808000000 USD
CY2018Q4 us-gaap Other Assets Current
OtherAssetsCurrent
918000000 USD
CY2019Q4 us-gaap Assets Current
AssetsCurrent
4768000000 USD
CY2018Q4 us-gaap Assets Current
AssetsCurrent
3820000000 USD
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1686000000 USD
CY2019Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
24000000 USD
CY2018Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
26000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
7596000000 USD
CY2018Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
8911000000 USD
CY2019Q4 us-gaap Other Intangible Assets Net
OtherIntangibleAssetsNet
1971000000 USD
CY2018Q4 us-gaap Other Intangible Assets Net
OtherIntangibleAssetsNet
1868000000 USD
CY2019Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
1084000000 USD
CY2019Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
386000000 USD
CY2018Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
22852000000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-2680000000 USD
CY2018Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
357000000 USD
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-2461000000 USD
CY2019Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
804000000 USD
CY2019Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-6814000000 USD
CY2018Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-1643000000 USD
CY2018Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
1192000000 USD
CY2019Q4 ctl Intangible Assets Net Including Goodwill And Other Assets Noncurrent
IntangibleAssetsNetIncludingGoodwillAndOtherAssetsNoncurrent
33895000000 USD
CY2018Q4 ctl Intangible Assets Net Including Goodwill And Other Assets Noncurrent
IntangibleAssetsNetIncludingGoodwillAndOtherAssetsNoncurrent
40028000000 USD
CY2019Q4 us-gaap Assets
Assets
64742000000 USD
CY2018Q4 us-gaap Assets
Assets
70256000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
2300000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
652000000 USD
CY2019Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
1724000000 USD
CY2018Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
1933000000 USD
CY2019Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
1037000000 USD
CY2018Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
1104000000 USD
CY2019Q4 us-gaap Taxes Payable Current
TaxesPayableCurrent
311000000 USD
CY2018Q4 us-gaap Taxes Payable Current
TaxesPayableCurrent
337000000 USD
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
416000000 USD
CY2019Q4 us-gaap Interest Payable Current
InterestPayableCurrent
280000000 USD
CY2018Q4 us-gaap Interest Payable Current
InterestPayableCurrent
316000000 USD
CY2018Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
832000000 USD
CY2019Q4 us-gaap Liabilities Current
LiabilitiesCurrent
7258000000 USD
CY2018Q4 us-gaap Liabilities Current
LiabilitiesCurrent
5531000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
32394000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
35409000000 USD
CY2019Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
2918000000 USD
CY2018Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
2527000000 USD
CY2019Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
4594000000 USD
CY2018Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
4319000000 USD
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1342000000 USD
CY2019Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
2766000000 USD
CY2018Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
2642000000 USD
CY2019Q4 us-gaap Deferred Credits And Other Liabilities Noncurrent
DeferredCreditsAndOtherLiabilitiesNoncurrent
11620000000 USD
CY2018Q4 us-gaap Deferred Credits And Other Liabilities Noncurrent
DeferredCreditsAndOtherLiabilitiesNoncurrent
9488000000 USD
CY2019Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2018Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2019Q4 us-gaap Preferred Stock Value
PreferredStockValue
0 USD
CY2018Q4 us-gaap Preferred Stock Value
PreferredStockValue
0 USD
CY2019Q4 us-gaap Common Stock Value
CommonStockValue
1090000000 USD
CY2018Q4 us-gaap Common Stock Value
CommonStockValue
1080000000 USD
CY2019Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
21874000000 USD
CY2018 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
522000000 USD
CY2019 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
0 USD
CY2017 ctl Gain Losson Extinguishmentof Debt Operating Activities
GainLossonExtinguishmentofDebtOperatingActivities
-5000000 USD
CY2017 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-931000000 USD
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
13470000000 USD
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
19828000000 USD
CY2019Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
64742000000 USD
CY2018Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
70256000000 USD
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-5269000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2017 us-gaap Net Income Loss
NetIncomeLoss
1389000000 USD
CY2019 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
4829000000 USD
CY2018 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
5120000000 USD
CY2017 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
3936000000 USD
CY2019 us-gaap Impairment Of Long Lived Assets To Be Disposed Of
ImpairmentOfLongLivedAssetsToBeDisposedOf
6506000000 USD
CY2018 us-gaap Impairment Of Long Lived Assets To Be Disposed Of
ImpairmentOfLongLivedAssetsToBeDisposedOf
2746000000 USD
CY2017 us-gaap Impairment Of Long Lived Assets To Be Disposed Of
ImpairmentOfLongLivedAssetsToBeDisposedOf
0 USD
CY2019 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
440000000 USD
CY2018 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
0 USD
CY2017 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
-82000000 USD
CY2019 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
145000000 USD
CY2018 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
153000000 USD
CY2017 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
176000000 USD
CY2019 ctl Gain Losson Extinguishmentof Debt Operating Activities
GainLossonExtinguishmentofDebtOperatingActivities
72000000 USD
CY2018 ctl Gain Losson Extinguishmentof Debt Operating Activities
GainLossonExtinguishmentofDebtOperatingActivities
-7000000 USD
CY2019 us-gaap Share Based Compensation
ShareBasedCompensation
162000000 USD
CY2018 us-gaap Share Based Compensation
ShareBasedCompensation
186000000 USD
CY2017 us-gaap Share Based Compensation
ShareBasedCompensation
111000000 USD
CY2019 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
5000000 USD
CY2018 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
-25000000 USD
CY2017 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
-31000000 USD
CY2019 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-261000000 USD
CY2018 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
124000000 USD
CY2017 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-123000000 USD
CY2019 us-gaap Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
20000000 USD
CY2018 us-gaap Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
75000000 USD
CY2017 us-gaap Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
54000000 USD
CY2019 us-gaap Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
32000000 USD
CY2018 us-gaap Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
-127000000 USD
CY2017 us-gaap Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
614000000 USD
CY2018 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-50000000 USD
CY2017 us-gaap Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
1529000000 USD
CY2019 us-gaap Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
-12000000 USD
CY2019 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
35000000 USD
CY2018 us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
18000000 USD
CY2017 us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
138000000 USD
CY2017 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
3106000000 USD
CY2019 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
0 USD
CY2019 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
6680000000 USD
CY2018 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
7032000000 USD
CY2017 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
3878000000 USD
CY2019 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
3628000000 USD
CY2018 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
3175000000 USD
CY2018 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
0 USD
CY2017 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
7289000000 USD
CY2019 us-gaap Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
93000000 USD
CY2018 us-gaap Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
158000000 USD
CY2018 us-gaap Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
-667000000 USD
CY2017 us-gaap Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
-202000000 USD
CY2019 us-gaap Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
-245000000 USD
CY2018 us-gaap Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
-329000000 USD
CY2017 us-gaap Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
174000000 USD
CY2019 us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
-16000000 USD
CY2018 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
61000000 USD
CY2017 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
5000000 USD
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-3570000000 USD
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-3078000000 USD
CY2017 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-8871000000 USD
CY2019 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
3707000000 USD
CY2018 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
130000000 USD
CY2017 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
8398000000 USD
CY2019 ctl Proceeds From Financing Obligations
ProceedsFromFinancingObligations
0 USD
CY2018 ctl Proceeds From Financing Obligations
ProceedsFromFinancingObligations
0 USD
CY2017 ctl Proceeds From Financing Obligations
ProceedsFromFinancingObligations
356000000 USD
CY2019 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
4157000000 USD
CY2018 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
1936000000 USD
CY2017 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
1963000000 USD
CY2019 us-gaap Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
-300000000 USD
CY2018 us-gaap Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
145000000 USD
CY2017 us-gaap Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
35000000 USD
CY2019 us-gaap Payments Of Dividends
PaymentsOfDividends
1100000000 USD
CY2018 us-gaap Payments Of Dividends
PaymentsOfDividends
2312000000 USD
CY2017 us-gaap Payments Of Dividends
PaymentsOfDividends
1453000000 USD
CY2019 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-61000000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
518000000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
587000000 USD
CY2016Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
224000000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1717000000 USD
CY2019 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-34000000 USD
CY2018 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-674000000 USD
CY2017 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
392000000 USD
CY2019 us-gaap Interest Paid Net
InterestPaidNet
2028000000 USD
CY2017 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-17000000 USD
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-1911000000 USD
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-4023000000 USD
CY2017 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
5356000000 USD
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
1199000000 USD
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-69000000 USD
CY2017 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
363000000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
518000000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
587000000 USD
CY2018 us-gaap Interest Paid Net
InterestPaidNet
2138000000 USD
CY2017 us-gaap Interest Paid Net
InterestPaidNet
1401000000 USD
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1690000000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
488000000 USD
CY2017Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
551000000 USD
CY2019Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
3000000 USD
CY2018Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
4000000 USD
CY2017Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
5000000 USD
CY2019Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
24000000 USD
CY2018Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
26000000 USD
CY2017Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
31000000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1717000000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
518000000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
587000000 USD
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
13470000000 USD
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
19828000000 USD
CY2017Q4 us-gaap Stockholders Equity
StockholdersEquity
23491000000 USD
CY2019 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
1.00
CY2018 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
2.16
CY2017 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
2.16
CY2019 us-gaap Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
<div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">We reclassified certain prior period amounts to conform to the current period presentation, including the categorization of our revenue and our segment reporting for </span><span style="font-family:Arial;font-size:10pt;">2019</span><span style="font-family:Arial;font-size:10pt;">, </span><span style="font-family:Arial;font-size:10pt;">2018</span><span style="font-family:Arial;font-size:10pt;"> and </span><span style="font-family:Arial;font-size:10pt;">2017</span><span style="font-family:Arial;font-size:10pt;">. See </span><span style="font-family:Arial;font-size:10pt;">Note 17—Segment Information</span><span style="font-family:Arial;font-size:10pt;"> for additional information. These changes had no impact on total operating revenue, total operating expenses or net (loss) income for any period.</span></div>
CY2019 us-gaap Use Of Estimates
UseOfEstimates
<div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;font-weight:bold;">Use of Estimates</span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Our consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. These accounting principles require us to make certain estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions we make when accounting for specific items and matters, including, but not limited to, revenue recognition, revenue reserves, network access costs, network access cost dispute reserves, pension plan assets, long-term contracts, customer retention patterns, allowance for doubtful accounts, depreciation, amortization, asset valuations, internal labor capitalization rates, recoverability of assets (including deferred tax assets), impairment assessments, pension, post-retirement and other post-employment benefits, taxes, certain liabilities and other provisions and contingencies, are reasonable, based on information available at the time they are made. These estimates, judgments and assumptions can materially affect the reported amounts of assets, liabilities and components of stockholders' equity as of the dates of the consolidated balance sheets, as well as the reported amounts of revenue, expenses and components of cash flows during the periods presented in our other consolidated financial statements. We also make estimates in our assessments of potential losses in relation to threatened or pending tax and legal matters. See </span><span style="font-family:Arial;font-size:10pt;">Note 16—Income Taxes</span><span style="font-family:Arial;font-size:10pt;"> and </span><span style="font-family:Arial;font-size:10pt;">Note 19—Commitments, Contingencies and Other Items</span><span style="font-family:Arial;font-size:10pt;"> for additional information.</span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">For matters not related to income taxes, if a loss is considered probable and the amount can be reasonably estimated, we recognize an expense for the estimated loss. If we have the potential to recover a portion of the estimated loss from a third party, we make a separate assessment of recoverability and reduce the estimated loss if recovery is also deemed probable.</span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">For matters related to income taxes, if we determine that the impact of an uncertain tax position is more likely than not to be sustained upon audit by the relevant taxing authority, then we recognize a benefit for the largest amount that is more likely than not to be sustained. </span><span style="font-family:Arial;">No</span><span style="font-family:Arial;font-size:10pt;"> portion of an uncertain tax position will be recognized if the position has less than a </span><span style="font-family:Arial;font-size:10pt;">50%</span><span style="font-family:Arial;font-size:10pt;"> likelihood of being sustained. Interest is recognized on the amount of unrecognized benefit from uncertain tax positions.</span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:36px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">For all of these and other matters, actual results could differ materially from our estimates.</span></div>
CY2019 us-gaap Advertising Expense
AdvertisingExpense
62000000 USD
CY2018 us-gaap Advertising Expense
AdvertisingExpense
98000000 USD
CY2017 us-gaap Advertising Expense
AdvertisingExpense
218000000 USD
CY2019 ctl Accounts Receivable Past Due Threshold Days Outstanding
AccountsReceivablePastDueThresholdDaysOutstanding
P30D
CY2019Q4 us-gaap Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
17000000 shares
CY2019 us-gaap Preferred Stock Dividends Per Share Declared
PreferredStockDividendsPerShareDeclared
25
CY2019Q1 ctl Preferred Stock Numberof Shares Issued Per Shareof Common Stock
PreferredStockNumberofSharesIssuedPerShareofCommonStock
1
CY2019Q1 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
6500000000 USD
CY2018Q4 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
2700000000 USD
CY2017 us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
20000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
28031000000 USD
CY2019Q4 us-gaap Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
269000000 USD
CY2018Q4 us-gaap Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
269000000 USD
CY2019Q4 us-gaap Other Intangible Assets Net
OtherIntangibleAssetsNet
1971000000 USD
CY2018Q4 us-gaap Other Intangible Assets Net
OtherIntangibleAssetsNet
1868000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
21534000000 USD
CY2019 us-gaap Acquired Finite Lived Intangible Assets Weighted Average Useful Life
AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
P8Y
CY2019 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1700000000 USD
CY2018 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1800000000 USD
CY2017 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1200000000 USD
CY2019Q4 ctl Intangible Assets Gross Including Goodwill
IntangibleAssetsGrossIncludingGoodwill
44000000000.0 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
1674000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
1258000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
1037000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
886000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
828000000 USD
CY2019Q4 us-gaap Number Of Reporting Units
NumberOfReportingUnits
8 reporting_unit
CY2019Q4 ctl Goodwill Control Premium Percent
GoodwillControlPremiumPercent
0.447
CY2019Q4 us-gaap Number Of Reporting Units
NumberOfReportingUnits
8 reporting_unit
CY2019Q4 us-gaap Number Of Reporting Units
NumberOfReportingUnits
8 reporting_unit
CY2019Q1 ctl Goodwill Control Premium Percent
GoodwillControlPremiumPercent
0.045
CY2019Q1 ctl Goodwill Control Premium Percent
GoodwillControlPremiumPercent
0.041
CY2019Q1 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
6500000000 USD
CY2018Q4 us-gaap Number Of Reporting Units
NumberOfReportingUnits
5 reporting_unit
CY2018Q4 ctl Goodwill Control Premium Percent
GoodwillControlPremiumPercent
0.001
CY2018Q4 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
2700000000 USD
CY2018Q4 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
2700000000 USD
CY2017Q4 us-gaap Goodwill
Goodwill
30475000000 USD
CY2018 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
282000000 USD
CY2018 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
2726000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
28031000000 USD
CY2018 us-gaap Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
-58000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
28031000000 USD
CY2019 us-gaap Goodwill Transfers
GoodwillTransfers
0 USD
CY2019 us-gaap Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
9000000 USD
CY2019 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
6506000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
21534000000 USD
CY2018 us-gaap Revenues
Revenues
23443000000 USD
CY2018 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
10862000000 USD
CY2018 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
4165000000 USD
CY2018 us-gaap Interest Expense
InterestExpense
2177000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
170000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-1.63
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-1.63
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1065866000 shares
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1065866000 shares
CY2019 us-gaap Revenues
Revenues
22401000000 USD
CY2019 ctl Revenue Adjustments
RevenueAdjustments
-1953000000 USD
CY2019 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
20448000000 USD
CY2019 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
20448000000 USD
CY2018 us-gaap Revenues
Revenues
23443000000 USD
CY2018 ctl Revenue Adjustments
RevenueAdjustments
-1538000000 USD
CY2018 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
21905000000 USD
CY2018 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
21905000000 USD
CY2019Q4 us-gaap Accounts Receivable Net
AccountsReceivableNet
2194000000 USD
CY2018Q1 us-gaap Accounts Receivable Net
AccountsReceivableNet
2346000000 USD
CY2019Q4 us-gaap Contract With Customer Liability Noncurrent
ContractWithCustomerLiabilityNoncurrent
1028000000 USD
CY2018Q1 us-gaap Contract With Customer Liability Noncurrent
ContractWithCustomerLiabilityNoncurrent
860000000 USD
CY2019Q4 us-gaap Contract With Customer Asset Net
ContractWithCustomerAssetNet
130000000 USD
CY2018Q1 us-gaap Contract With Customer Asset Net
ContractWithCustomerAssetNet
140000000 USD
CY2019 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
630000000 USD
CY2018 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
295000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
6000000000.0 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Percentage
RevenueRemainingPerformanceObligationPercentage
0.92
CY2019 ctl Operatingand Shortterm Lease Cost
OperatingandShorttermLeaseCost
677000000 USD
CY2019 us-gaap Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
44000000 USD
CY2019 us-gaap Finance Lease Interest Expense
FinanceLeaseInterestExpense
12000000 USD
CY2019 ctl Finance Lease Cost
FinanceLeaseCost
56000000 USD
CY2019 us-gaap Lease Cost
LeaseCost
733000000 USD
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
733000000 USD
CY2018 us-gaap Operating Lease Cost
OperatingLeaseCost
875000000 USD
CY2017 us-gaap Operating Lease Cost
OperatingLeaseCost
550000000 USD
CY2019 us-gaap Sublease Income
SubleaseIncome
24000000 USD
CY2018 us-gaap Sublease Income
SubleaseIncome
21000000 USD
CY2017 us-gaap Sublease Income
SubleaseIncome
13000000 USD
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1686000000 USD
CY2019Q4 us-gaap Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
252000000 USD
CY2019Q4 ctl Lease Rightof Use Asset
LeaseRightofUseAsset
1938000000 USD
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
416000000 USD
CY2019Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
35000000 USD
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1342000000 USD
CY2019Q4 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
185000000 USD
CY2019Q4 ctl Lease Liability
LeaseLiability
1978000000 USD
CY2019Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P7Y2M12D
CY2019Q4 us-gaap Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
P11Y3M18D
CY2019Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.0646
CY2019Q4 us-gaap Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
0.0547
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
665000000 USD
CY2019 us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
14000000 USD
CY2019 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
32000000 USD
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
358000000 USD
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
14000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths
460000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Next Twelve Months
FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
47000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
361000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Two
FinanceLeaseLiabilityPaymentsDueYearTwo
28000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
308000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Three
FinanceLeaseLiabilityPaymentsDueYearThree
22000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
265000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Four
FinanceLeaseLiabilityPaymentsDueYearFour
22000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
194000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Five
FinanceLeaseLiabilityPaymentsDueYearFive
21000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
686000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due After Year Five
FinanceLeaseLiabilityPaymentsDueAfterYearFive
170000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
2274000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
310000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
516000000 USD
CY2019Q4 us-gaap Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
90000000 USD
CY2019Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
1758000000 USD
CY2019Q4 us-gaap Finance Lease Liability
FinanceLeaseLiability
220000000 USD
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
416000000 USD
CY2019Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
35000000 USD
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1342000000 USD
CY2019Q4 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
185000000 USD
CY2019 us-gaap Operating Lease Lease Income
OperatingLeaseLeaseIncome
1400000000 USD
CY2018 us-gaap Operating Lease Lease Income
OperatingLeaseLeaseIncome
882000000 USD
CY2017 us-gaap Operating Lease Lease Income
OperatingLeaseLeaseIncome
766000000 USD
CY2019 ctl Operating Lease Lease Income Percentof Operating Revenue
OperatingLeaseLeaseIncomePercentofOperatingRevenue
0.06
CY2018 ctl Operating Lease Lease Income Percentof Operating Revenue
OperatingLeaseLeaseIncomePercentofOperatingRevenue
0.04
CY2017 ctl Operating Lease Lease Income Percentof Operating Revenue
OperatingLeaseLeaseIncomePercentofOperatingRevenue
0.04
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due Current
CapitalLeasesFutureMinimumPaymentsDueCurrent
51000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due In Two Years
CapitalLeasesFutureMinimumPaymentsDueInTwoYears
36000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due In Three Years
CapitalLeasesFutureMinimumPaymentsDueInThreeYears
23000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due In Four Years
CapitalLeasesFutureMinimumPaymentsDueInFourYears
21000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due In Five Years
CapitalLeasesFutureMinimumPaymentsDueInFiveYears
20000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due Thereafter
CapitalLeasesFutureMinimumPaymentsDueThereafter
183000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Due
CapitalLeasesFutureMinimumPaymentsDue
334000000 USD
CY2019Q4 ctl Capital Leases Future Minimum Payments Executory Costs And Interest Included In Payments
CapitalLeasesFutureMinimumPaymentsExecutoryCostsAndInterestIncludedInPayments
100000000 USD
CY2019Q4 us-gaap Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments
CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments
234000000 USD
CY2019Q4 us-gaap Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
38000000 USD
CY2019Q4 us-gaap Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
196000000 USD
CY2018Q4 us-gaap Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals
OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals
101000000 USD
CY2019Q4 ctl Capital Lease And Other Obligations
CapitalLeaseAndOtherObligations
222000000 USD
CY2018Q4 ctl Capital Lease And Other Obligations
CapitalLeaseAndOtherObligations
801000000 USD
CY2019Q4 us-gaap Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
52000000 USD
CY2018Q4 us-gaap Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
8000000 USD
CY2019Q4 us-gaap Deferred Finance Costs Net
DeferredFinanceCostsNet
293000000 USD
CY2018Q4 us-gaap Deferred Finance Costs Net
DeferredFinanceCostsNet
283000000 USD
CY2019Q4 us-gaap Debt And Capital Lease Obligations
DebtAndCapitalLeaseObligations
34694000000 USD
CY2018Q4 us-gaap Debt And Capital Lease Obligations
DebtAndCapitalLeaseObligations
36061000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
2300000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
652000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
32394000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
35409000000 USD
CY2019 us-gaap Repayments Of Debt
RepaymentsOfDebt
3600000000 USD
CY2019 ctl Gain Losson Extinguishmentof Debt Operating Activities
GainLossonExtinguishmentofDebtOperatingActivities
72000000 USD
CY2018 us-gaap Repayments Of Debt
RepaymentsOfDebt
1700000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2300000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2478000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
4224000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2096000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
1973000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
21968000000 USD
CY2019Q4 us-gaap Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
35039000000 USD
CY2019 us-gaap Interest Costs Incurred
InterestCostsIncurred
2093000000 USD
CY2018 us-gaap Interest Costs Incurred
InterestCostsIncurred
2230000000 USD
CY2017 us-gaap Interest Costs Incurred
InterestCostsIncurred
1559000000 USD
CY2019 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
72000000 USD
CY2018 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
53000000 USD
CY2017 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
78000000 USD
CY2019 us-gaap Interest Expense
InterestExpense
2021000000 USD
CY2018 us-gaap Interest Expense
InterestExpense
2177000000 USD
CY2017 us-gaap Interest Expense
InterestExpense
1481000000 USD
CY2019Q4 ctl Debt Instrument Coverage Ratio
DebtInstrumentCoverageRatio
2.00
CY2019Q4 us-gaap Other Receivables Gross Current
OtherReceivablesGrossCurrent
20000000 USD
CY2018Q4 us-gaap Other Receivables Gross Current
OtherReceivablesGrossCurrent
21000000 USD
CY2019Q4 us-gaap Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
2365000000 USD
CY2018Q4 us-gaap Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
2540000000 USD
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
106000000 USD
CY2018Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
142000000 USD
CY2019Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
2259000000 USD
CY2018Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
2398000000 USD
CY2018Q4 us-gaap Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
142000000 USD
CY2019 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
145000000 USD
CY2019 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
181000000 USD
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
106000000 USD
CY2017Q4 us-gaap Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
164000000 USD
CY2018 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
153000000 USD
CY2018 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
175000000 USD
CY2018Q4 us-gaap Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
142000000 USD
CY2016Q4 us-gaap Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
178000000 USD
CY2017 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
176000000 USD
CY2017 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
190000000 USD
CY2017Q4 us-gaap Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
164000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
55425000000 USD
CY2018Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
53267000000 USD
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
29346000000 USD
CY2018Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
26859000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
26079000000 USD
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
26408000000 USD
CY2019 us-gaap Depreciation
Depreciation
3100000000 USD
CY2018 us-gaap Depreciation
Depreciation
3300000000 USD
CY2017 us-gaap Depreciation
Depreciation
2700000000 USD
CY2018Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
190000000 USD
CY2017Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
115000000 USD
CY2016Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
95000000 USD
CY2019 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
11000000 USD
CY2018 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
10000000 USD
CY2017 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
6000000 USD
CY2019 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
14000000 USD
CY2018 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
14000000 USD
CY2017 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
3000000 USD
CY2019 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
10000000 USD
CY2018 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
21000000 USD
CY2017 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
-8000000 USD
CY2019Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
197000000 USD
CY2018Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
190000000 USD
CY2017Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
115000000 USD
CY2019Q4 us-gaap Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months
DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
5000000 USD
CY2019 ctl Defined Benefit Plan Direct Benefit Payments Netof Participant Contributionsand Direct Subsidy Receipts
DefinedBenefitPlanDirectBenefitPaymentsNetofParticipantContributionsandDirectSubsidyReceipts
245000000 USD
CY2019Q4 ctl Defined Benefit Plan Expected Future Benefit Payment Next Twelve Months Netof Direct Subsidies
DefinedBenefitPlanExpectedFutureBenefitPaymentNextTwelveMonthsNetofDirectSubsidies
236000000 USD
CY2019 ctl Defined Benefit Plan Increase Decreasein Plan Participants Percent
DefinedBenefitPlanIncreaseDecreaseinPlanParticipantsPercent
-0.03
CY2019Q4 us-gaap Defined Benefit Plan Ultimate Health Care Cost Trend Rate1
DefinedBenefitPlanUltimateHealthCareCostTrendRate1
0.0450
CY2019Q4 us-gaap Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
15300000000 USD
CY2018Q4 us-gaap Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
14800000000 USD
CY2017Q4 us-gaap Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
16500000000 USD
CY2019 ctl Defined Benefit Plan Commingled Funds Redemption Notice
DefinedBenefitPlanCommingledFundsRedemptionNotice
P270D
CY2019 us-gaap Defined Benefit Plan Actual Return On Plan Assets
DefinedBenefitPlanActualReturnOnPlanAssets
1600000000 USD
CY2019 us-gaap Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
619000000 USD
CY2019 ctl Defined Benefit Plan Difference Between Actual Return And Expected Return On Plan Assets
DefinedBenefitPlanDifferenceBetweenActualReturnAndExpectedReturnOnPlanAssets
1000000000.0 USD
CY2018 us-gaap Defined Benefit Plan Actual Return On Plan Assets
DefinedBenefitPlanActualReturnOnPlanAssets
-350000000 USD
CY2018 us-gaap Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
686000000 USD
CY2018 ctl Defined Benefit Plan Difference Between Actual Return And Expected Return On Plan Assets
DefinedBenefitPlanDifferenceBetweenActualReturnAndExpectedReturnOnPlanAssets
1000000000.0 USD
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
2231000000 USD
CY2019 ctl Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss And Net Prior Service Cost Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossAndNetPriorServiceCostRecognizedInNetPeriodicBenefitCostNetOfTax
-175000000 USD
CY2019 ctl Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss And Net Prior Service Costs Credit Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAndNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax
-357000000 USD
CY2019 ctl Defined Benefit Plan Net Change In Accumulated Other Comprehensive Income
DefinedBenefitPlanNetChangeInAccumulatedOtherComprehensiveIncome
-182000000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
2413000000 USD
CY2017Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
1966000000 USD
CY2018 ctl Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss And Net Prior Service Cost Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossAndNetPriorServiceCostRecognizedInNetPeriodicBenefitCostNetOfTax
264000000 USD
CY2018 ctl Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss And Net Prior Service Costs Credit Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAndNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax
-1000000 USD
CY2018 ctl Defined Benefit Plan Net Change In Accumulated Other Comprehensive Income
DefinedBenefitPlanNetChangeInAccumulatedOtherComprehensiveIncome
-265000000 USD
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
2231000000 USD
CY2019 ctl Defined Benefit Plan Active Employees Health Care Benefit Expenses
DefinedBenefitPlanActiveEmployeesHealthCareBenefitExpenses
381000000 USD
CY2018 ctl Defined Benefit Plan Active Employees Health Care Benefit Expenses
DefinedBenefitPlanActiveEmployeesHealthCareBenefitExpenses
434000000 USD
CY2017 ctl Defined Benefit Plan Active Employees Health Care Benefit Expenses
DefinedBenefitPlanActiveEmployeesHealthCareBenefitExpenses
341000000 USD
CY2019 ctl Defined Benefit Plan Health Care Benefit Active Employees Contribution
DefinedBenefitPlanHealthCareBenefitActiveEmployeesContribution
148000000 USD
CY2018 ctl Defined Benefit Plan Health Care Benefit Active Employees Contribution
DefinedBenefitPlanHealthCareBenefitActiveEmployeesContribution
142000000 USD
CY2017 ctl Defined Benefit Plan Health Care Benefit Active Employees Contribution
DefinedBenefitPlanHealthCareBenefitActiveEmployeesContribution
128000000 USD
CY2019Q4 ctl Sharesof Entity Common Stock Assetsof Entitys Defined Contribution Plan
SharesofEntityCommonStockAssetsofEntitysDefinedContributionPlan
11000000 shares
CY2018Q4 ctl Sharesof Entity Common Stock Assetsof Entitys Defined Contribution Plan
SharesofEntityCommonStockAssetsofEntitysDefinedContributionPlan
12000000 shares
CY2019 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
113000000 USD
CY2018 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
93000000 USD
CY2017 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
77000000 USD
CY2019 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
162000000 USD
CY2018 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
186000000 USD
CY2017 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
111000000 USD
CY2019 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
39000000 USD
CY2018 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
46000000 USD
CY2017 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
28000000 USD
CY2019Q4 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
190000000 USD
CY2019 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
P1Y7M6D
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-5269000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2017 us-gaap Net Income Loss
NetIncomeLoss
1389000000 USD
CY2019 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-5269000000 USD
CY2018 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-1733000000 USD
CY2017 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
1389000000 USD
CY2019 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
-5269000000 USD
CY2018 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
-1733000000 USD
CY2017 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
1389000000 USD
CY2019 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
1088730000 shares
CY2018 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
1078409000 shares
CY2017 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
635576000 shares
CY2019 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
17289000 shares
CY2018 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
12543000 shares
CY2017 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
7768000 shares
CY2019 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1071441000 shares
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1065866000 shares
CY2017 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
627808000 shares
CY2019 us-gaap Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
0 shares
CY2018 us-gaap Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
0 shares
CY2017 us-gaap Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
10000 shares
CY2019 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
0 shares
CY2018 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
0 shares
CY2017 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
875000 shares
CY2019 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1071441000 shares
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1065866000 shares
CY2017 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
628693000 shares
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-4.92
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-1.63
CY2017 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.21
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-4.92
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-1.63
CY2017 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.21
CY2019 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
6800000 shares
CY2018 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
2700000 shares
CY2017 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
4700000 shares
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-849000000 USD
CY2017 ctl Provisional Tax Benefit Amount
ProvisionalTaxBenefitAmount
1100000000 USD
CY2018 ctl Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Income Tax Expense Benefit Purchase Accounting Adjustment
TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefitPurchaseAccountingAdjustment
-92000000 USD
CY2019 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
7000000 USD
CY2018 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
-576000000 USD
CY2017 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
82000000 USD
CY2019 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
376000000 USD
CY2018 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
734000000 USD
CY2017 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
-988000000 USD
CY2019 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
15000000 USD
CY2018 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
-22000000 USD
CY2017 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
21000000 USD
CY2019 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
81000000 USD
CY2018 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
52000000 USD
CY2017 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
16000000 USD
CY2019 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
35000000 USD
CY2018 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
36000000 USD
CY2017 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
22000000 USD
CY2019 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
-11000000 USD
CY2018 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
-54000000 USD
CY2017 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
-2000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
503000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
170000000 USD
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-849000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
503000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
170000000 USD
CY2019 us-gaap Income Tax Effects Allocated Directly To Equity Employee Stock Options
IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions
0 USD
CY2018 us-gaap Income Tax Effects Allocated Directly To Equity Employee Stock Options
IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions
0 USD
CY2017 us-gaap Income Tax Effects Allocated Directly To Equity Employee Stock Options
IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions
0 USD
CY2019 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
-62000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
-2000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
81000000 USD
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2018 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2017 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.350
CY2019 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
-0.016
CY2018 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
-0.015
CY2017 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.039
CY2019 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses
-0.286
CY2018 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses
-0.366
CY2017 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses
0
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Contingencies
EffectiveIncomeTaxRateReconciliationTaxContingencies
-0.002
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Contingencies
EffectiveIncomeTaxRateReconciliationTaxContingencies
0.013
CY2017 us-gaap Effective Income Tax Rate Reconciliation Tax Contingencies
EffectiveIncomeTaxRateReconciliationTaxContingencies
0.010
CY2019 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
0
CY2018 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
-0.059
CY2017 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
-2.098
CY2019 us-gaap Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
-0.005
CY2018 us-gaap Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
0.018
CY2017 us-gaap Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
-0.007
CY2019 us-gaap Effective Income Tax Rate Reconciliation Deductions Dividends
EffectiveIncomeTaxRateReconciliationDeductionsDividends
0
CY2018 us-gaap Effective Income Tax Rate Reconciliation Deductions Dividends
EffectiveIncomeTaxRateReconciliationDeductionsDividends
0
CY2017 us-gaap Effective Income Tax Rate Reconciliation Deductions Dividends
EffectiveIncomeTaxRateReconciliationDeductionsDividends
0.002
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
-0.001
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
-0.009
CY2017 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
0.014
CY2019 us-gaap Effective Income Tax Rate Reconciliation Disposition Of Assets
EffectiveIncomeTaxRateReconciliationDispositionOfAssets
0
CY2018 us-gaap Effective Income Tax Rate Reconciliation Disposition Of Assets
EffectiveIncomeTaxRateReconciliationDispositionOfAssets
0
CY2017 us-gaap Effective Income Tax Rate Reconciliation Disposition Of Assets
EffectiveIncomeTaxRateReconciliationDispositionOfAssets
0.050
CY2019 ctl Effective Income Tax Rate Reconciliation Tax Benefitof Net Operating Loss Carryback
EffectiveIncomeTaxRateReconciliationTaxBenefitofNetOperatingLossCarryback
0
CY2018 ctl Effective Income Tax Rate Reconciliation Tax Benefitof Net Operating Loss Carryback
EffectiveIncomeTaxRateReconciliationTaxBenefitofNetOperatingLossCarryback
-0.091
CY2017 ctl Effective Income Tax Rate Reconciliation Tax Benefitof Net Operating Loss Carryback
EffectiveIncomeTaxRateReconciliationTaxBenefitofNetOperatingLossCarryback
0
CY2019 ctl Effective Income Tax Rate Reconciliation Transaction Costs Percent
EffectiveIncomeTaxRateReconciliationTransactionCostsPercent
0
CY2018 ctl Effective Income Tax Rate Reconciliation Transaction Costs Percent
EffectiveIncomeTaxRateReconciliationTransactionCostsPercent
0
CY2017 ctl Effective Income Tax Rate Reconciliation Transaction Costs Percent
EffectiveIncomeTaxRateReconciliationTransactionCostsPercent
0.060
CY2019 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.008
CY2018 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.010
CY2017 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
0.036
CY2019 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-0.106
CY2018 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-0.109
CY2017 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-1.572
CY2019 us-gaap Income Tax Reconciliation Nondeductible Expense Impairment Losses
IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses
1400000000 USD
CY2018 us-gaap Income Tax Reconciliation Nondeductible Expense Impairment Losses
IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses
572000000 USD
CY2018 ctl Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Income Tax Expense Benefit Purchase Accounting Adjustment
TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefitPurchaseAccountingAdjustment
-92000000 USD
CY2018 ctl Effective Income Tax Rate Reconciliation Operating Loss Carrybacks Amount
EffectiveIncomeTaxRateReconciliationOperatingLossCarrybacksAmount
142000000 USD
CY2017 ctl Provisional Tax Benefit Amount
ProvisionalTaxBenefitAmount
1100000000 USD
CY2017 us-gaap Income Tax Reconciliation Disposition Of Assets
IncomeTaxReconciliationDispositionOfAssets
27000000 USD
CY2017 ctl Effective Income Tax Rate Reconciliation Transaction Cost Amount
EffectiveIncomeTaxRateReconciliationTransactionCostAmount
32000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
1169000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
1111000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
3167000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
3445000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther
134000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther
162000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
577000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
553000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
5047000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
5271000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
1319000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
1331000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
3728000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
3940000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
3489000000 USD
CY2018Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
3011000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities Goodwill And Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
3019000000 USD
CY2018Q4 us-gaap Deferred Tax Liabilities Goodwill And Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
3303000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
0 USD
CY2018Q4 us-gaap Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
23000000 USD
CY2019Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
6508000000 USD
CY2018Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
6337000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
2780000000 USD
CY2018Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
2397000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
2800000000 USD
CY2018Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
2400000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities Gross Noncurrent
DeferredTaxLiabilitiesGrossNoncurrent
2900000000 USD
CY2018Q4 us-gaap Deferred Tax Liabilities Gross Noncurrent
DeferredTaxLiabilitiesGrossNoncurrent
2500000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Net Noncurrent
DeferredTaxAssetsNetNoncurrent
118000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Net Noncurrent
DeferredTaxAssetsNetNoncurrent
131000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
1300000000 USD
CY2019 us-gaap Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
-12000000 USD
CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
1587000000 USD
CY2017Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
40000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Acquisition
UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition
11000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Increases Resulting From Acquisition
UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition
0 USD
CY2019 ctl Unrecognizedtaxbenefitsincreasefromprioryearspositionsnettedagainst Dta
UnrecognizedtaxbenefitsincreasefromprioryearspositionsnettedagainstDTA
6000000 USD
CY2018 ctl Unrecognizedtaxbenefitsincreasefromprioryearspositionsnettedagainst Dta
UnrecognizedtaxbenefitsincreasefromprioryearspositionsnettedagainstDTA
1353000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions
49000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions
15000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
19000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
0 USD
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
5000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
4000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
10000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
211000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
8000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
1000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
0 USD
CY2018 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
2000000 USD
CY2019 ctl Unrecognized Tax Benefits Decrease From Reversalof Prior Year Tax Positions
UnrecognizedTaxBenefitsDecreaseFromReversalofPriorYearTaxPositions
5000000 USD
CY2018 ctl Unrecognized Tax Benefits Decrease From Reversalof Prior Year Tax Positions
UnrecognizedTaxBenefitsDecreaseFromReversalofPriorYearTaxPositions
3000000 USD
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
1538000000 USD
CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
1587000000 USD
CY2019Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
259000000 USD
CY2018Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
256000000 USD
CY2019Q4 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
15000000 USD
CY2018Q4 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
17000000 USD
CY2019Q4 us-gaap Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit
SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit
3000000 USD
CY2019 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
5 segment
CY2019Q4 ctl Numberof Global Enterprise Customers
NumberofGlobalEnterpriseCustomers
200 customer
CY2019Q4 ctl Numberof Operating Regions
NumberofOperatingRegions
3 regional_operating_unit
CY2019 us-gaap Revenues
Revenues
22401000000 USD
CY2019 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
10077000000 USD
CY2019 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
3715000000 USD
CY2019 us-gaap Share Based Compensation
ShareBasedCompensation
162000000 USD
CY2019 ctl Operating Expenses Excluding Depreciation Amortizationand Impairment
OperatingExpensesExcludingDepreciationAmortizationandImpairment
13630000000 USD
CY2019 ctl Income Loss From Continuing Operations Before Interest Income Tax Depreciationand Amortization
IncomeLossFromContinuingOperationsBeforeInterestIncomeTaxDepreciationandAmortization
8771000000 USD
CY2018 us-gaap Revenues
Revenues
23443000000 USD
CY2018 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
10862000000 USD
CY2018 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
4165000000 USD
CY2018 us-gaap Share Based Compensation
ShareBasedCompensation
186000000 USD
CY2018 ctl Operating Expenses Excluding Depreciation Amortizationand Impairment
OperatingExpensesExcludingDepreciationAmortizationandImpairment
14841000000 USD
CY2018 ctl Income Loss From Continuing Operations Before Interest Income Tax Depreciationand Amortization
IncomeLossFromContinuingOperationsBeforeInterestIncomeTaxDepreciationandAmortization
8602000000 USD
CY2017 us-gaap Revenues
Revenues
17656000000 USD
CY2017 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
8203000000 USD
CY2017 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
3508000000 USD
CY2017 us-gaap Share Based Compensation
ShareBasedCompensation
111000000 USD
CY2017 ctl Operating Expenses Excluding Depreciation Amortizationand Impairment
OperatingExpensesExcludingDepreciationAmortizationandImpairment
11600000000 USD
CY2017 ctl Income Loss From Continuing Operations Before Interest Income Tax Depreciationand Amortization
IncomeLossFromContinuingOperationsBeforeInterestIncomeTaxDepreciationandAmortization
6056000000 USD
CY2019 ctl Universal Service Taxes And Surcharges
UniversalServiceTaxesAndSurcharges
1002000000 USD
CY2018 ctl Universal Service Taxes And Surcharges
UniversalServiceTaxesAndSurcharges
952000000 USD
CY2017 ctl Universal Service Taxes And Surcharges
UniversalServiceTaxesAndSurcharges
601000000 USD
CY2019 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
162000000 USD
CY2018 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
186000000 USD
CY2017 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
111000000 USD
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-4766000000 USD
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-1563000000 USD
CY2017 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
540000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
503000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
170000000 USD
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-849000000 USD
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-5269000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2017 us-gaap Net Income Loss
NetIncomeLoss
1389000000 USD
CY2019Q1 us-gaap Revenues
Revenues
5647000000 USD
CY2019Q2 us-gaap Revenues
Revenues
5578000000 USD
CY2019Q3 us-gaap Revenues
Revenues
5606000000 USD
CY2019Q4 us-gaap Revenues
Revenues
5570000000 USD
CY2019 us-gaap Revenues
Revenues
22401000000 USD
CY2019Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
-5499000000 USD
CY2019Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
976000000 USD
CY2019Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
950000000 USD
CY2019Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
847000000 USD
CY2019 us-gaap Operating Income Loss
OperatingIncomeLoss
-2726000000 USD
CY2019Q1 us-gaap Net Income Loss
NetIncomeLoss
-6165000000 USD
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
371000000 USD
CY2019Q3 us-gaap Net Income Loss
NetIncomeLoss
302000000 USD
CY2019Q4 us-gaap Net Income Loss
NetIncomeLoss
223000000 USD
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-5269000000 USD
CY2019Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-5.77
CY2019Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.35
CY2019Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.28
CY2019Q4 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.21
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-4.92
CY2019Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-5.77
CY2019Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.35
CY2019Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.28
CY2019Q4 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.21
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-4.92
CY2018Q1 us-gaap Revenues
Revenues
5945000000 USD
CY2018Q2 us-gaap Revenues
Revenues
5902000000 USD
CY2018Q3 us-gaap Revenues
Revenues
5818000000 USD
CY2018Q4 us-gaap Revenues
Revenues
5778000000 USD
CY2018 us-gaap Revenues
Revenues
23443000000 USD
CY2018Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
750000000 USD
CY2018Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
767000000 USD
CY2018Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
894000000 USD
CY2018Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
-1841000000 USD
CY2018 us-gaap Operating Income Loss
OperatingIncomeLoss
570000000 USD
CY2018Q1 us-gaap Net Income Loss
NetIncomeLoss
115000000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
292000000 USD
CY2018Q3 us-gaap Net Income Loss
NetIncomeLoss
272000000 USD
CY2018Q4 us-gaap Net Income Loss
NetIncomeLoss
-2412000000 USD
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-1733000000 USD
CY2018Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.11
CY2018Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.27
CY2018Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.25
CY2018Q4 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-2.26
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-1.63
CY2018Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.11
CY2018Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.27
CY2018Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.25
CY2018Q4 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-2.26
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-1.63
CY2019Q1 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
6500000000 USD
CY2018Q1 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
2700000000 USD
CY2018Q1 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
71000000 USD
CY2018Q2 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
162000000 USD
CY2018Q3 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
43000000 USD
CY2018Q4 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
117000000 USD
CY2019Q1 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
34000000 USD
CY2019Q2 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
39000000 USD
CY2019Q3 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
38000000 USD
CY2019Q4 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
123000000 USD
CY2019Q4 us-gaap Litigation Reserve
LitigationReserve
180000000 USD
CY2018Q4 us-gaap Litigation Reserve
LitigationReserve
123000000 USD
CY2019 us-gaap Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
-71000000 USD
CY2019 us-gaap Loss Contingency Patents Allegedly Infringed Number
LossContingencyPatentsAllegedlyInfringedNumber
1 patent
CY2019 ctl Site Contingency Number Of Properties With Potential Environmental Liability
SiteContingencyNumberOfPropertiesWithPotentialEnvironmentalLiability
200 property
CY2019Q4 us-gaap Purchase Commitment Remaining Minimum Amount Committed
PurchaseCommitmentRemainingMinimumAmountCommitted
766000000 USD
CY2019Q4 us-gaap Purchase Obligation Due In Next Twelve Months
PurchaseObligationDueInNextTwelveMonths
247000000 USD
CY2019Q4 us-gaap Purchase Obligation Due In Second And Third Year
PurchaseObligationDueInSecondAndThirdYear
261000000 USD
CY2019Q4 us-gaap Purchase Obligation Due In Fourth And Fifth Year
PurchaseObligationDueInFourthAndFifthYear
85000000 USD
CY2019Q4 us-gaap Purchase Obligation Due After Fifth Year
PurchaseObligationDueAfterFifthYear
173000000 USD
CY2019Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
274000000 USD
CY2018Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
307000000 USD
CY2019Q4 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
35000000 USD
CY2018Q4 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
82000000 USD
CY2019Q4 us-gaap Materials Supplies And Other
MaterialsSuppliesAndOther
105000000 USD
CY2018Q4 us-gaap Materials Supplies And Other
MaterialsSuppliesAndOther
120000000 USD
CY2019Q4 us-gaap Other Deferred Costs Net
OtherDeferredCostsNet
42000000 USD
CY2018Q4 us-gaap Other Deferred Costs Net
OtherDeferredCostsNet
52000000 USD
CY2019Q4 ctl Contract Assets Fulfillment Costs Current
ContractAssetsFulfillmentCostsCurrent
178000000 USD
CY2018Q4 ctl Contract Assets Fulfillment Costs Current
ContractAssetsFulfillmentCostsCurrent
167000000 USD
CY2019Q4 us-gaap Other Assets Miscellaneous Current
OtherAssetsMiscellaneousCurrent
59000000 USD
CY2018Q4 us-gaap Other Assets Miscellaneous Current
OtherAssetsMiscellaneousCurrent
108000000 USD
CY2019Q4 us-gaap Other Assets Current
OtherAssetsCurrent
808000000 USD
CY2018Q4 us-gaap Other Assets Current
OtherAssetsCurrent
918000000 USD
CY2019Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
1724000000 USD
CY2018Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
1933000000 USD
CY2019Q4 us-gaap Accrued Rent Current
AccruedRentCurrent
75000000 USD
CY2018Q4 us-gaap Accrued Rent Current
AccruedRentCurrent
45000000 USD
CY2019Q4 us-gaap Litigation Reserve Current
LitigationReserveCurrent
88000000 USD
CY2018Q4 us-gaap Litigation Reserve Current
LitigationReserveCurrent
30000000 USD
CY2019Q4 us-gaap Other Sundry Liabilities Current
OtherSundryLiabilitiesCurrent
223000000 USD
CY2018Q4 us-gaap Other Sundry Liabilities Current
OtherSundryLiabilitiesCurrent
282000000 USD
CY2019Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
386000000 USD
CY2018Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
357000000 USD
CY2019Q4 us-gaap Bank Overdrafts
BankOverdrafts
106000000 USD
CY2018Q4 us-gaap Bank Overdrafts
BankOverdrafts
86000000 USD
CY2019 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
469000000 USD
CY2018 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
434000000 USD
CY2019 us-gaap Oci Before Reclassifications Net Of Tax Attributable To Parent
OciBeforeReclassificationsNetOfTaxAttributableToParent
-396000000 USD
CY2019 us-gaap Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
-177000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-219000000 USD
CY2018 us-gaap Oci Before Reclassifications Net Of Tax Attributable To Parent
OciBeforeReclassificationsNetOfTaxAttributableToParent
-202000000 USD
CY2018 us-gaap Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
-143000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-59000000 USD
CY2019Q4 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.250
CY2019Q4 us-gaap Dividends Common Stock
DividendsCommonStock
273000000 USD
CY2019Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.250
CY2019Q3 us-gaap Dividends Common Stock
DividendsCommonStock
273000000 USD
CY2019Q2 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.250
CY2019Q2 us-gaap Dividends Common Stock
DividendsCommonStock
274000000 USD
CY2019Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.250
CY2019Q1 us-gaap Dividends Common Stock
DividendsCommonStock
273000000 USD
CY2018Q4 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.540
CY2018Q4 us-gaap Dividends Common Stock
DividendsCommonStock
586000000 USD
CY2018Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.540
CY2018Q3 us-gaap Dividends Common Stock
DividendsCommonStock
584000000 USD
CY2018Q2 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.540
CY2018Q2 us-gaap Dividends Common Stock
DividendsCommonStock
588000000 USD
CY2018Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.540
CY2018Q1 us-gaap Dividends Common Stock
DividendsCommonStock
586000000 USD

Files In Submission

Name View Source Status
0000018926-20-000009-index-headers.html Edgar Link pending
0000018926-20-000009-index.html Edgar Link pending
0000018926-20-000009.txt Edgar Link pending
0000018926-20-000009-xbrl.zip Edgar Link pending
ctl-20191231.xsd Edgar Link pending
ctl-20191231_cal.xml Edgar Link unprocessable
ctl-20191231_def.xml Edgar Link unprocessable
ctl-20191231_lab.xml Edgar Link unprocessable
ctl-20191231_pre.xml Edgar Link unprocessable
ctl2019123110k.htm Edgar Link pending
ctl2019123110k_htm.xml Edgar Link completed
ctl20191231ex21.htm Edgar Link pending
ctl20191231ex23.htm Edgar Link pending
ctl20191231ex311.htm Edgar Link pending
ctl20191231ex312.htm Edgar Link pending
ctl20191231ex321.htm Edgar Link pending
ctl20191231ex322.htm Edgar Link pending
ctl20191231ex41.htm Edgar Link pending
ctllogo1a05.jpg Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R100.htm Edgar Link pending
R101.htm Edgar Link pending
R102.htm Edgar Link pending
R103.htm Edgar Link pending
R104.htm Edgar Link pending
R105.htm Edgar Link pending
R106.htm Edgar Link pending
R107.htm Edgar Link pending
R108.htm Edgar Link pending
R109.htm Edgar Link pending
R11.htm Edgar Link pending
R110.htm Edgar Link pending
R111.htm Edgar Link pending
R112.htm Edgar Link pending
R113.htm Edgar Link pending
R114.htm Edgar Link pending
R115.htm Edgar Link pending
R116.htm Edgar Link pending
R117.htm Edgar Link pending
R118.htm Edgar Link pending
R119.htm Edgar Link pending
R12.htm Edgar Link pending
R120.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R76.htm Edgar Link pending
R77.htm Edgar Link pending
R78.htm Edgar Link pending
R79.htm Edgar Link pending
R8.htm Edgar Link pending
R80.htm Edgar Link pending
R81.htm Edgar Link pending
R82.htm Edgar Link pending
R83.htm Edgar Link pending
R84.htm Edgar Link pending
R85.htm Edgar Link pending
R86.htm Edgar Link pending
R87.htm Edgar Link pending
R88.htm Edgar Link pending
R89.htm Edgar Link pending
R9.htm Edgar Link pending
R90.htm Edgar Link pending
R91.htm Edgar Link pending
R92.htm Edgar Link pending
R93.htm Edgar Link pending
R94.htm Edgar Link pending
R95.htm Edgar Link pending
R96.htm Edgar Link pending
R97.htm Edgar Link pending
R98.htm Edgar Link pending
R99.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending