2014 Q4 Form 10-K Financial Statement
#000009212216000126 Filed on February 26, 2016
Income Statement
| Concept | 2014 Q4 | 2014 Q3 | 2014 Q2 |
|---|---|---|---|
| Revenue | $4.017B | $5.339B | $4.467B |
| YoY Change | 2.29% | 6.42% | 5.2% |
| Cost Of Revenue | $158.0M | $194.0M | $133.0M |
| YoY Change | 68.09% | 33.79% | 4.72% |
| Gross Profit | $3.859B | $5.145B | $4.334B |
| YoY Change | 0.68% | 5.6% | 5.22% |
| Gross Profit Margin | 96.07% | 96.37% | 97.02% |
| Selling, General & Admin | |||
| YoY Change | |||
| % of Gross Profit | |||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $495.0M | $616.0M | $595.0M |
| YoY Change | -13.61% | 5.3% | 4.02% |
| % of Gross Profit | 12.83% | 11.97% | 13.73% |
| Operating Expenses | $3.228B | $3.449B | $3.231B |
| YoY Change | 7.82% | 6.75% | 6.67% |
| Operating Profit | $561.0M | $1.278B | $1.103B |
| YoY Change | -29.79% | -14.29% | 72.34% |
| Interest Expense | -$193.0M | -$207.0M | -$210.0M |
| YoY Change | 9.04% | 2.48% | -2.33% |
| % of Operating Profit | -34.4% | -16.2% | -19.04% |
| Other Income/Expense, Net | $20.00M | $56.00M | $56.00M |
| YoY Change | 1900.0% | -136.36% | -133.14% |
| Pretax Income | $388.0M | $1.127B | $949.0M |
| YoY Change | -37.72% | -15.71% | 101.49% |
| Income Tax | $88.00M | $392.0M | $321.0M |
| % Of Pretax Income | 22.68% | 34.78% | 33.83% |
| Net Earnings | $300.0M | $735.0M | $628.0M |
| YoY Change | -30.39% | -15.42% | 100.64% |
| Net Earnings / Revenue | 7.47% | 13.77% | 14.06% |
| Basic Earnings Per Share | $0.31 | $0.80 | $0.68 |
| Diluted Earnings Per Share | $0.31 | $0.80 | $0.68 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 899.8M shares | 895.7M shares | |
| Diluted Shares Outstanding |
Balance Sheet
| Concept | 2014 Q4 | 2014 Q3 | 2014 Q2 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $710.0M | $1.414B | $583.0M |
| YoY Change | 7.74% | 107.33% | 37.5% |
| Cash & Equivalents | $710.0M | $1.414B | $583.0M |
| Short-Term Investments | |||
| Other Short-Term Assets | $50.00M | $1.227B | $1.305B |
| YoY Change | 28.21% | 3618.18% | 3628.57% |
| Inventory | $1.969B | $1.835B | $1.901B |
| Prepaid Expenses | $665.0M | ||
| Receivables | $1.072B | $1.419B | $1.220B |
| Other Receivables | $443.0M | $363.0M | $367.0M |
| Total Short-Term Assets | $5.864B | $6.258B | $5.376B |
| YoY Change | 4.45% | 8.18% | -10.41% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $54.87B | $53.17B | $52.76B |
| YoY Change | 7.15% | 5.91% | 6.99% |
| Goodwill | |||
| YoY Change | |||
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | |||
| YoY Change | |||
| Other Assets | $922.0M | $8.229B | $8.260B |
| YoY Change | 49.19% | 1304.27% | 1410.05% |
| Total Long-Term Assets | $64.37B | $61.40B | $61.02B |
| YoY Change | 9.75% | 4.22% | 5.29% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $5.864B | $6.258B | $5.376B |
| Total Long-Term Assets | $64.37B | $61.40B | $61.02B |
| Total Assets | $70.23B | $67.65B | $66.40B |
| YoY Change | 9.29% | 4.57% | 3.81% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $1.593B | $1.381B | $1.320B |
| YoY Change | 15.77% | 7.81% | -10.02% |
| Accrued Expenses | $1.581B | $1.464B | $1.154B |
| YoY Change | 28.85% | 18.64% | 31.14% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $803.0M | $361.0M | $1.817B |
| YoY Change | -45.82% | -51.87% | 14.49% |
| Long-Term Debt Due | $3.333B | $2.398B | $585.0M |
| YoY Change | 610.66% | 83.47% | -71.94% |
| Total Short-Term Liabilities | $8.961B | $6.890B | $5.974B |
| YoY Change | 62.19% | 20.79% | -18.68% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $20.84B | $21.70B | $22.12B |
| YoY Change | -2.36% | 3.07% | 10.92% |
| Other Long-Term Liabilities | $589.0M | $6.063B | $5.896B |
| YoY Change | 0.68% | 1002.36% | 1060.63% |
| Total Long-Term Liabilities | $589.0M | $27.76B | $28.02B |
| YoY Change | 0.68% | 4947.64% | 5415.16% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $8.961B | $6.890B | $5.974B |
| Total Long-Term Liabilities | $589.0M | $27.76B | $28.02B |
| Total Liabilities | $48.89B | $46.67B | $45.84B |
| YoY Change | 10.1% | 4.19% | 2.35% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $9.609B | ||
| YoY Change | 1.04% | ||
| Common Stock | $10.49B | ||
| YoY Change | 6.83% | ||
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $26.00M | ||
| YoY Change | -89.6% | ||
| Treasury Stock Shares | 700.0K shares | ||
| Shareholders Equity | $19.95B | $20.99B | $20.56B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $70.23B | $67.65B | $66.40B |
| YoY Change | 8.81% | 4.57% | 3.81% |
Cashflow Statement
| Concept | 2014 Q4 | 2014 Q3 | 2014 Q2 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | $300.0M | $735.0M | $628.0M |
| YoY Change | -30.39% | -15.42% | 100.64% |
| Depreciation, Depletion And Amortization | $495.0M | $616.0M | $595.0M |
| YoY Change | -13.61% | 5.3% | 4.02% |
| Cash From Operating Activities | $1.128B | $2.617B | $967.0M |
| YoY Change | -33.1% | 6.21% | -20.08% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$2.074B | -$1.211B | -$1.512B |
| YoY Change | 39.66% | -12.31% | 8.0% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | -$177.0M | -$177.0M | -$42.00M |
| YoY Change | 14.19% | 92.39% | -184.0% |
| Cash From Investing Activities | -$2.251B | -$1.388B | -$1.554B |
| YoY Change | 37.26% | -5.77% | 15.11% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | |||
| YoY Change | |||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | 419.0M | -398.0M | 580.0M |
| YoY Change | -707.25% | -45.7% | 1083.67% |
| NET CHANGE | |||
| Cash From Operating Activities | 1.128B | 2.617B | 967.0M |
| Cash From Investing Activities | -2.251B | -1.388B | -1.554B |
| Cash From Financing Activities | 419.0M | -398.0M | 580.0M |
| Net Change In Cash | -704.0M | 831.0M | -7.000M |
| YoY Change | 2960.87% | 222.09% | -92.31% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $1.128B | $2.617B | $967.0M |
| Capital Expenditures | -$2.074B | -$1.211B | -$1.512B |
| Free Cash Flow | $3.202B | $3.828B | $2.479B |
| YoY Change | 0.98% | -0.44% | -5.02% |
Facts In Submission
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Aggregate Payment For Claims Resulting From Terrorist Acts In One Year Period
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Allowance For Funds Used During Construction And Interest Capitalized Net Of Income Taxes
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Amortization Of Deferred Investment Tax Credits
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Amortization Of Deferred Investment Tax Credits
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22000000 | USD |
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Amortization Of Deferred Investment Tax Credits
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21000000 | USD |
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Amortization Of Regulatory Asset Vacation Pay
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1800000000 | USD |
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Annual Dividend Preferred And Preference Stock
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39000000 | USD |
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Annual Increase Or Decrease In Assumed Medical Care Cost Trend Rate
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0.01 | |
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Annualized Interest Long Term Debt
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Stockholders Equity
StockholdersEquity
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Bank Credit Arrangements No Term Loan Due With In One Year
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315000000 | USD |
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Bank Credit Arrangements Term Loan Due With In One Year
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95000000 | USD |
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Block Period Considered For Inflation Adjustment Against Maximum Assessment Per Reactor
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Capitalization In Percent
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Capitalization In Percent
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1 | |
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Change In Construction Payables
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Change In Construction Payables
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Change In Construction Payables
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402000000 | USD |
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Common Stockholders Equity In Percent Of Capitalization
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0.475 | |
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Common Stockholders Equity In Percent Of Capitalization
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0.440 | |
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Deferred Charges And Other Assets
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7009000000 | USD |
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Deferred Charges And Other Assets
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7926000000 | USD |
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Deferred Charges Related To Income Taxes
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1510000000 | USD |
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Deferred Charges Related To Income Taxes
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1560000000 | USD |
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Deferred Credits Related To Income Taxes
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192000000 | USD |
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Deferred Credits Related To Income Taxes
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187000000 | USD |
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Depreciation And Amortization Excluding Nuclear Fuel
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Depreciation And Amortization Excluding Nuclear Fuel
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1945000000 | USD |
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Depreciation And Amortization Excluding Nuclear Fuel
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Estimated Loss On Integrated Coal Gasification Combined Cycle Project
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Estimated Loss On Integrated Coal Gasification Combined Cycle Project
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Estimated Loss On Integrated Coal Gasification Combined Cycle Project
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365000000 | USD |
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Executable Term Loans For One Year
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Executable Term Loans For Two Years
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Expected Volume Of Natural Gas Subject To Option To Sell Back Excess Gas Due To Operational Constraints
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Expense Under Purchase Power Agreements Accounted For As Operating Leases
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157000000 | USD |
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Expense Under Purchase Power Agreements Accounted For As Operating Leases
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198000000 | USD |
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Expense Under Purchase Power Agreements Accounted For As Operating Leases
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227000000 | USD |
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Fair Value Gain Loss
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Fair Value Of Derivative Liabilities With Contingent Features
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52000000 | USD |
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Increase Decrease In Accrued Taxes
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Increase Decrease In Accrued Taxes
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352000000 | USD |
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Increase Decrease In Fair Value Of Securities Related To Nuclear Decommissioning
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181000000 | USD |
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Increase Decrease In Fair Value Of Securities Related To Nuclear Decommissioning
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98000000 | USD |
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Increase Decrease In Fair Value Of Securities Related To Nuclear Decommissioning
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11000000 | USD |
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Increase Decrease Retail Fuel Cost Over Recovery Short Term
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66000000 | USD |
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Increase Decrease Retail Fuel Cost Over Recovery Short Term
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23000000 | USD |
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Increase Decrease Retail Fuel Cost Over Recovery Short Term
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Interest Bearing Refundable Deposit Related To Asset Sale
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|
0 | USD |
| CY2014 | so |
Interest Bearing Refundable Deposit Related To Asset Sale
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125000000 | USD |
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Interest Bearing Refundable Deposit Related To Asset Sale
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Interest Bearing Refundable Deposit Related To Assets Sale
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Interest Bearing Refundable Deposit Related To Assets Sale
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Line Of Credit Expire Year Five
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4400000000 | USD |
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Line Of Credit Expire Year One
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410000000 | USD |
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Line Of Credit Expire Year Three
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1665000000 | USD |
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30000000 | USD |
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Long Term Debt And Capital Lease Obligation Maturities Re Payments In Next Twelve Months
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2700000000 | USD |
| CY2014Q4 | so |
Long Term Debt And Capital Lease Obligation Net
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23973000000 | USD |
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Long Term Debt And Capital Lease Obligation Net
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27362000000 | USD |
| CY2014Q4 | so |
Long Term Debt And Capital Lease Obligations In Percent Of Capitalization
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|
0.492 | |
| CY2015Q4 | so |
Long Term Debt And Capital Lease Obligations In Percent Of Capitalization
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|
0.526 | |
| CY2014Q4 | so |
Long Term Debt Maturities Repayments Of Principal In Last Twelve Months
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2375000000 | USD |
| CY2015Q4 | so |
Long Term Debt Maturities Repayments Of Principal In Last Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInLastTwelveMonths
|
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| CY2015Q4 | so |
Long Term Debtand Capital Lease Obligation Maturities Repaymentsin Year Five
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|
1400000000 | USD |
| CY2015Q4 | so |
Long Term Debtand Capital Lease Obligation Maturities Repaymentsin Year Four
LongTermDebtandCapitalLeaseObligationMaturitiesRepaymentsinYearFour
|
1200000000 | USD |
| CY2015Q4 | so |
Long Term Debtand Capital Lease Obligation Maturities Repaymentsin Year Three
LongTermDebtandCapitalLeaseObligationMaturitiesRepaymentsinYearThree
|
1700000000 | USD |
| CY2015Q4 | so |
Long Term Debtand Capital Lease Obligation Maturities Repaymentsin Year Two
LongTermDebtandCapitalLeaseObligationMaturitiesRepaymentsinYearTwo
|
2400000000 | USD |
| CY2014Q4 | so |
Long Term Senior Notes And Debt
LongTermSeniorNotesAndDebt
|
19055000000 | USD |
| CY2015Q4 | so |
Long Term Senior Notes And Debt
LongTermSeniorNotesAndDebt
|
20418000000 | USD |
| CY2015 | so |
Maximum Aggregate Amount For Each Incident
MaximumAggregateAmountForEachIncident
|
19000000 | USD |
| CY2015 | so |
Maximum Amount For Each Licensed Reactor
MaximumAmountForEachLicensedReactor
|
127000000 | USD |
| CY2015 | so |
Maximum Coverage Per Occurrence Per Unit Limit To Obtain Replacement Power
MaximumCoveragePerOccurrencePerUnitLimitToObtainReplacementPower
|
490000000 | USD |
| CY2015 | so |
Maximum Deductible Waiting Period
MaximumDeductibleWaitingPeriod
|
26 weeks | |
| CY2015 | so |
Maximum Fund Provided For Public Liability Claims
MaximumFundProvidedForPublicLiabilityClaims
|
13500000000 | USD |
| CY2015 | so |
Maximum Insurance Coverage
MaximumInsuranceCoverage
|
375000000 | USD |
| CY2015 | so |
Maximum Limit Per Occurrence Period Limit Exhausted
MaximumLimitPerOccurrencePeriodLimitExhausted
|
P3Y | |
| CY2015 | so |
Maximum Percentage Of Transfer Performance Shares To Common Stock Based On Actual Shareholder Return
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|
2 | |
| CY2015 | so |
Maximum Percentage Of Uncollectible Accounts
MaximumPercentageOfUncollectibleAccounts
|
0.01 | |
| CY2015Q4 | so |
Maximum Potential Collateral Requirements Arising From Credit Risk Related Contingent Features
MaximumPotentialCollateralRequirementsArisingFromCreditRiskRelatedContingentFeatures
|
52000000 | USD |
| CY2015 | so |
Maximum Revenue From Single Customer Or Industry
MaximumRevenueFromSingleCustomerOrIndustry
|
0.1 | |
| CY2015 | so |
Minimum Percentage Of Transfer Performance Shares To Common Stock Based On Actual Shareholder Return
MinimumPercentageOfTransferPerformanceSharesToCommonStockBasedOnActualShareholderReturn
|
0 | |
| CY2014Q4 | so |
Minority Interest In Percent Of Capitalization
MinorityInterestInPercentOfCapitalization
|
0.023 | |
| CY2015Q4 | so |
Minority Interest In Percent Of Capitalization
MinorityInterestInPercentOfCapitalization
|
0.030 | |
| CY2013 | so |
Mirror Construction Work In Progress
MirrorConstructionWorkInProgress
|
0 | USD |
| CY2014 | so |
Mirror Construction Work In Progress
MirrorConstructionWorkInProgress
|
180000000 | USD |
| CY2015 | so |
Mirror Construction Work In Progress
MirrorConstructionWorkInProgress
|
-271000000 | USD |
| CY2014Q4 | so |
Mirror Construction Work In Progress Balance
MirrorConstructionWorkInProgressBalance
|
271000000 | USD |
| CY2015Q4 | so |
Mirror Construction Work In Progress Balance
MirrorConstructionWorkInProgressBalance
|
0 | USD |
| CY2013 | so |
Noncash Property Additions Recognized
NoncashPropertyAdditionsRecognized
|
411000000 | USD |
| CY2014 | so |
Noncash Property Additions Recognized
NoncashPropertyAdditionsRecognized
|
528000000 | USD |
| CY2015 | so |
Noncash Property Additions Recognized
NoncashPropertyAdditionsRecognized
|
844000000 | USD |
| CY2014 | so |
Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
|
221000000 | USD |
| CY2015 | so |
Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
|
567000000 | USD |
| CY2014Q4 | so |
Nuclear Fuel At Amortized Cost
NuclearFuelAtAmortizedCost
|
911000000 | USD |
| CY2015Q4 | so |
Nuclear Fuel At Amortized Cost
NuclearFuelAtAmortizedCost
|
934000000 | USD |
| CY2015Q4 | so |
Number Of Employees Participatingin Stock Optionand Performance Share Units Program
NumberOfEmployeesParticipatinginStockOptionandPerformanceShareUnitsProgram
|
5405 | Employee |
| CY2015Q4 | so |
Number Of Traditional Operating Companies
NumberOfTraditionalOperatingCompanies
|
4 | |
| CY2015 | so |
Original Maturitiesof Temporary Cash Investments
OriginalMaturitiesofTemporaryCashInvestments
|
P90D | |
| CY2014Q4 | so |
Other Accounts Notes And Loans Receivable
OtherAccountsNotesAndLoansReceivable
|
307000000 | USD |
| CY2015Q4 | so |
Other Accounts Notes And Loans Receivable
OtherAccountsNotesAndLoansReceivable
|
398000000 | USD |
| CY2014Q4 | so |
Other Cost Of Removal Obligations
OtherCostOfRemovalObligations
|
1215000000 | USD |
| CY2015Q4 | so |
Other Cost Of Removal Obligations
OtherCostOfRemovalObligations
|
1162000000 | USD |
| CY2013 | so |
Other Electric Revenues
OtherElectricRevenues
|
639000000 | USD |
| CY2014 | so |
Other Electric Revenues
OtherElectricRevenues
|
672000000 | USD |
| CY2015 | so |
Other Electric Revenues
OtherElectricRevenues
|
657000000 | USD |
| CY2014Q4 | so |
Other Regulatory Assets Current
OtherRegulatoryAssetsCurrent
|
346000000 | USD |
| CY2015Q4 | so |
Other Regulatory Assets Current
OtherRegulatoryAssetsCurrent
|
402000000 | USD |
| CY2014Q4 | so |
Other Regulatory Assets Deferred
OtherRegulatoryAssetsDeferred
|
4334000000 | USD |
| CY2015Q4 | so |
Other Regulatory Assets Deferred
OtherRegulatoryAssetsDeferred
|
4989000000 | USD |
| CY2014Q4 | so |
Other Regulatory Liabilities Current
OtherRegulatoryLiabilitiesCurrent
|
26000000 | USD |
| CY2015Q4 | so |
Other Regulatory Liabilities Current
OtherRegulatoryLiabilitiesCurrent
|
278000000 | USD |
| CY2014Q4 | so |
Other Regulatory Liabilities Deferred
OtherRegulatoryLiabilitiesDeferred
|
398000000 | USD |
| CY2015Q4 | so |
Other Regulatory Liabilities Deferred
OtherRegulatoryLiabilitiesDeferred
|
254000000 | USD |
| CY2014Q4 | so |
Other Utility Plant Net
OtherUtilityPlantNet
|
211000000 | USD |
| CY2015Q4 | so |
Other Utility Plant Net
OtherUtilityPlantNet
|
233000000 | USD |
| CY2013 | so |
Payments For Investment In Restricted Cash
PaymentsForInvestmentInRestrictedCash
|
149000000 | USD |
| CY2014 | so |
Payments For Investment In Restricted Cash
PaymentsForInvestmentInRestrictedCash
|
11000000 | USD |
| CY2015 | so |
Payments For Investment In Restricted Cash
PaymentsForInvestmentInRestrictedCash
|
160000000 | USD |
| CY2015 | so |
Period Of Operating Loss Carryforward
PeriodOfOperatingLossCarryforward
|
P4Y | |
| CY2015 | so |
Period Over Which Company Has Elected To Amortize Changes In Market Value Of All Plan Assets
PeriodOverWhichCompanyHasElectedToAmortizeChangesInMarketValueOfAllPlanAssets
|
P5Y | |
| CY2014Q4 | so |
Plant In Service Net Of Depreciation
PlantInServiceNetOfDepreciation
|
45954000000 | USD |
| CY2015Q4 | so |
Plant In Service Net Of Depreciation
PlantInServiceNetOfDepreciation
|
50865000000 | USD |
| CY2013 | so |
Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
|
91000000 | USD |
| CY2014 | so |
Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
|
181000000 | USD |
| CY2015 | so |
Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
|
197000000 | USD |
| CY2013 | so |
Proceeds From Distribution Of Restricted Cash
ProceedsFromDistributionOfRestrictedCash
|
96000000 | USD |
| CY2014 | so |
Proceeds From Distribution Of Restricted Cash
ProceedsFromDistributionOfRestrictedCash
|
57000000 | USD |
| CY2015 | so |
Proceeds From Distribution Of Restricted Cash
ProceedsFromDistributionOfRestrictedCash
|
154000000 | USD |
| CY2013 | so |
Proceeds From Sale Of Securities Held In External Trust Funds
ProceedsFromSaleOfSecuritiesHeldInExternalTrustFunds
|
1000000000 | USD |
| CY2014 | so |
Proceeds From Sale Of Securities Held In External Trust Funds
ProceedsFromSaleOfSecuritiesHeldInExternalTrustFunds
|
913000000 | USD |
| CY2015 | so |
Proceeds From Sale Of Securities Held In External Trust Funds
ProceedsFromSaleOfSecuritiesHeldInExternalTrustFunds
|
1400000000 | USD |
| CY2014Q4 | so |
Public Utilities Property Plant And Equipment Communications Equipment
PublicUtilitiesPropertyPlantAndEquipmentCommunicationsEquipment
|
439000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment Communications Equipment
PublicUtilitiesPropertyPlantAndEquipmentCommunicationsEquipment
|
418000000 | USD |
| CY2014Q4 | so |
Public Utilities Property Plant And Equipment General
PublicUtilitiesPropertyPlantAndEquipmentGeneral
|
4198000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment General
PublicUtilitiesPropertyPlantAndEquipmentGeneral
|
4377000000 | USD |
| CY2014Q4 | so |
Public Utilities Property Plant And Equipment It Equipment And Software
PublicUtilitiesPropertyPlantAndEquipmentItEquipmentAndSoftware
|
244000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment It Equipment And Software
PublicUtilitiesPropertyPlantAndEquipmentItEquipmentAndSoftware
|
222000000 | USD |
| CY2014Q4 | so |
Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
|
110000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
|
116000000 | USD |
| CY2015Q4 | so |
Ratio Of Indebtedness To Capitalization Covenant
RatioOfIndebtednessToCapitalizationCovenant
|
0.7 | |
| CY2015Q3 | so |
Ratio Of Indebtedness To Capitalization Covenant
RatioOfIndebtednessToCapitalizationCovenant
|
0.65 | |
| CY2014Q4 | so |
Redeemable Noncontrolling Interest As Percent Of Capitalization
RedeemableNoncontrollingInterestAsPercentOfCapitalization
|
0.001 | |
| CY2015Q4 | so |
Redeemable Noncontrolling Interest As Percent Of Capitalization
RedeemableNoncontrollingInterestAsPercentOfCapitalization
|
0.001 | |
| CY2014Q4 | so |
Regulatory Hedge Unrealized Gain
RegulatoryHedgeUnrealizedGain
|
7000000 | USD |
| CY2015Q4 | so |
Regulatory Hedge Unrealized Gain
RegulatoryHedgeUnrealizedGain
|
3000000 | USD |
| CY2014Q4 | so |
Regulatory Hedge Unrealized Loss
RegulatoryHedgeUnrealizedLoss
|
197000000 | USD |
| CY2015Q4 | so |
Regulatory Hedge Unrealized Loss
RegulatoryHedgeUnrealizedLoss
|
217000000 | USD |
| CY2015 | so |
Remarketed Pollution Control Bonds
RemarketedPollutionControlBonds
|
181000000 | USD |
| CY2013 | so |
Repayment Of Interestbearing Refundable Deposit Related To Asset Sale
RepaymentOfInterestbearingRefundableDepositRelatedToAssetSale
|
0 | USD |
| CY2014 | so |
Repayment Of Interestbearing Refundable Deposit Related To Asset Sale
RepaymentOfInterestbearingRefundableDepositRelatedToAssetSale
|
0 | USD |
| CY2015 | so |
Repayment Of Interestbearing Refundable Deposit Related To Asset Sale
RepaymentOfInterestbearingRefundableDepositRelatedToAssetSale
|
275000000 | USD |
| CY2013 | so |
Retail Revenues
RetailRevenues
|
14541000000 | USD |
| CY2014 | so |
Retail Revenues
RetailRevenues
|
15550000000 | USD |
| CY2015 | so |
Retail Revenues
RetailRevenues
|
14987000000 | USD |
| CY2015 | so |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance Pursuant To Stock Based Compensation Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuancePursuantToStockBasedCompensationPlan
|
106000000 | shares |
| CY2014Q4 | so |
Short Term Borrowings Excluding Other Energy Service Contracts
ShortTermBorrowingsExcludingOtherEnergyServiceContracts
|
803000000 | USD |
| CY2015Q4 | so |
Short Term Borrowings Excluding Other Energy Service Contracts
ShortTermBorrowingsExcludingOtherEnergyServiceContracts
|
1240000000 | USD |
| CY2015 | so |
Significantly Increase Or Decrease In Amount Of Unrecognized Tax Benefits
SignificantlyIncreaseOrDecreaseInAmountOfUnrecognizedTaxBenefits
|
P12M | |
| CY2015 | so |
State Investment Tax Credit
StateInvestmentTaxCredit
|
188000000 | USD |
| CY2015 | so |
Stock Issued During Period Shares Company Investment Plan And Employee And Director Stock Plans
StockIssuedDuringPeriodSharesCompanyInvestmentPlanAndEmployeeAndDirectorStockPlans
|
6600000 | shares |
| CY2013Q4 | so |
Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
|
0 | USD |
| CY2014Q4 | so |
Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
|
160000000 | USD |
| CY2015Q4 | so |
Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
|
423000000 | USD |
| CY2014Q4 | so |
Temporary Equity Carrying Amount In Percent Of Capitalization
TemporaryEquityCarryingAmountInPercentOfCapitalization
|
0.009 | |
| CY2015Q4 | so |
Temporary Equity Carrying Amount In Percent Of Capitalization
TemporaryEquityCarryingAmountInPercentOfCapitalization
|
0.003 | |
| CY2014Q1 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
44 | |
| CY2014Q2 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
46.81 | |
| CY2014Q3 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
45.47 | |
| CY2014Q4 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
51.28 | |
| CY2015Q1 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
53.16 | |
| CY2015Q2 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
45.44 | |
| CY2015Q3 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
46.84 | |
| CY2015Q4 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
47.5 | |
| CY2014Q1 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
40.27 | |
| CY2014Q2 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
42.55 | |
| CY2014Q3 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
41.87 | |
| CY2014Q4 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
43.55 | |
| CY2015Q1 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
43.55 | |
| CY2015Q2 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
41.4 | |
| CY2015Q3 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
41.81 | |
| CY2015Q4 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
43.38 | |
| CY2014Q4 | so |
Unamortized Debt Issuance Expense Current
UnamortizedDebtIssuanceExpenseCurrent
|
4000000 | USD |
| CY2015Q4 | so |
Unamortized Debt Issuance Expense Current
UnamortizedDebtIssuanceExpenseCurrent
|
1000000 | USD |
| CY2014Q4 | so |
Unbilled Revenues Current
UnbilledRevenuesCurrent
|
432000000 | USD |
| CY2015Q4 | so |
Unbilled Revenues Current
UnbilledRevenuesCurrent
|
397000000 | USD |
| CY2014Q4 | so |
Under Recovered Regulatory Clause Revenues
UnderRecoveredRegulatoryClauseRevenues
|
136000000 | USD |
| CY2015Q4 | so |
Under Recovered Regulatory Clause Revenues
UnderRecoveredRegulatoryClauseRevenues
|
63000000 | USD |
| CY2015 | so |
Undistributed Retained Earnings Of Subsidiaries
UndistributedRetainedEarningsOfSubsidiaries
|
7000000000 | USD |
| CY2014Q4 | so |
Unrecognized Tax Benefit
UnrecognizedTaxBenefit
|
4000000 | USD |
| CY2015Q4 | so |
Unrecognized Tax Benefit
UnrecognizedTaxBenefit
|
370000000 | USD |
| CY2014Q4 | so |
Utility Plant In Service
UtilityPlantInService
|
69220000000 | USD |
| CY2015Q4 | so |
Utility Plant In Service
UtilityPlantInService
|
74362000000 | USD |
| CY2014Q4 | so |
Vacation Pay
VacationPay
|
177000000 | USD |
| CY2015Q4 | so |
Vacation Pay
VacationPay
|
178000000 | USD |
| CY2013 | so |
Wholesale Revenues
WholesaleRevenues
|
1855000000 | USD |
| CY2014 | so |
Wholesale Revenues
WholesaleRevenues
|
2184000000 | USD |
| CY2015 | so |
Wholesale Revenues
WholesaleRevenues
|
1798000000 | USD |
| CY2014Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1593000000 | USD |
| CY2015Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1905000000 | USD |
| CY2014Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
1090000000 | USD |
| CY2015Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
1058000000 | USD |
| CY2014Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
487000000 | USD |
| CY2015Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
484000000 | USD |
| CY2014Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
149000000 | USD |
| CY2015Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
19000000 | USD |
| CY2014Q4 | us-gaap |
Accrued Salaries Current
AccruedSalariesCurrent
|
576000000 | USD |
| CY2015Q4 | us-gaap |
Accrued Salaries Current
AccruedSalariesCurrent
|
549000000 | USD |
| CY2014Q4 | us-gaap |
Accrued Vacation Current
AccruedVacationCurrent
|
223000000 | USD |
| CY2015Q4 | us-gaap |
Accrued Vacation Current
AccruedVacationCurrent
|
228000000 | USD |
| CY2014Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
1208000000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
1219000000 | USD |
| CY2014Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
24059000000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
24253000000 | USD |
| CY2014Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-128000000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-130000000 | USD |
| CY2014Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
5955000000 | USD |
| CY2015Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
6282000000 | USD |
| CY2013 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
65000000 | USD |
| CY2014 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
86000000 | USD |
| CY2015 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
100000000 | USD |
| CY2013 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
25000000 | USD |
| CY2014 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
27000000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
6000000 | USD |
| CY2014Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
18000000 | USD |
| CY2015Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
13000000 | USD |
| CY2014 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
7000000 | shares |
| CY2015 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
1000000 | shares |
| CY2013Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
2018000000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
2201000000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
3759000000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
102000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
115000000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
32000000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
217000000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
18000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
662000000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
17000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
37000000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
80000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
818000000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
2168000000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
3542000000 | USD |
| CY2013Q4 | us-gaap |
Assets
Assets
|
64264000000 | USD |
| CY2014Q4 | us-gaap |
Assets
Assets
|
70233000000 | USD |
| CY2015Q4 | us-gaap |
Assets
Assets
|
78318000000 | USD |
| CY2014Q4 | us-gaap |
Assets Current
AssetsCurrent
|
5864000000 | USD |
| CY2015Q4 | us-gaap |
Assets Current
AssetsCurrent
|
6526000000 | USD |
| CY2014Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
159000000 | USD |
| CY2015Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
146000000 | USD |
| CY2014Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
31000000 | USD |
| CY2015Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
32000000 | USD |
| CY2014Q4 | us-gaap |
Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
|
161000000 | USD |
| CY2015Q4 | us-gaap |
Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
|
152000000 | USD |
| CY2014Q4 | us-gaap |
Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
|
49000000 | USD |
| CY2015Q4 | us-gaap |
Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
|
59000000 | USD |
| CY2014Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
41984000000 | USD |
| CY2015Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
46831000000 | USD |
| CY2012Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
628000000 | USD |
| CY2013Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
659000000 | USD |
| CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
710000000 | USD |
| CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1404000000 | USD |
| CY2013 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
31000000 | USD |
| CY2014 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
51000000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
694000000 | USD |
| CY2014Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2015Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2013 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.0125 | |
| CY2014Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5075 | |
| CY2014Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.525 | |
| CY2014Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.525 | |
| CY2014Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.525 | |
| CY2014 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.0825 | |
| CY2015Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.525 | |
| CY2015Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2015Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2014 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
672000000 | USD |
| CY2015 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
645000000 | USD |
| CY2013 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
13832000000 | USD |
| CY2015Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2015 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.1525 | |
| CY2014Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
5 | |
| CY2015Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
5 | |
| CY2014Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1500000000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1500000000 | shares |
| CY2014Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
909000000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
915000000 | shares |
| CY2014Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
4539000000 | USD |
| CY2015Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
4572000000 | USD |
| CY2013 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
1692000000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
1910000000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
2365000000 | USD |
| CY2014Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
7792000000 | USD |
| CY2015Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
9082000000 | USD |
| CY2013 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
461000000 | USD |
| CY2014 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
14825000000 | USD |
| CY2015 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
13207000000 | USD |
| CY2013 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
363000000 | USD |
| CY2014 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
175000000 | USD |
| CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-177000000 | USD |
| CY2013 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-10000000 | USD |
| CY2014 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
93000000 | USD |
| CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-33000000 | USD |
| CY2014Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
390000000 | USD |
| CY2015Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
404000000 | USD |
| CY2014Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
23814000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
27216000000 | USD |
| CY2014Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
25816000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
27913000000 | USD |
| CY2014Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
33000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
36000000 | USD |
| CY2014Q4 | us-gaap |
Debt Instrument Unamortized Premium
DebtInstrumentUnamortizedPremium
|
69000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Unamortized Premium
DebtInstrumentUnamortizedPremium
|
61000000 | USD |
| CY2014Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
1546000000 | USD |
| CY2015Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
1512000000 | USD |
| CY2014Q4 | us-gaap |
Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
|
19288000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
|
22358000000 | USD |
| CY2013 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
386000000 | USD |
| CY2014 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
695000000 | USD |
| CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
1266000000 | USD |
| CY2013 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
496000000 | USD |
| CY2014 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
709000000 | USD |
| CY2015 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
1404000000 | USD |
| CY2014Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
16256000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
18678000000 | USD |
| CY2013 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
110000000 | USD |
| CY2014 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
14000000 | USD |
| CY2015 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
138000000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
5241000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
6358000000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
5192000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
6356000000 | USD |
| CY2015Q2 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
|
24000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
|
3500000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
1600000000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
49000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
2000000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
11082000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
12322000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
187000000 | USD |
| CY2014Q4 | us-gaap |
Defined Benefit Plan Accumulated Benefit Obligation
DefinedBenefitPlanAccumulatedBenefitObligation
|
10000000000 | USD |
| CY2015Q4 | us-gaap |
Defined Benefit Plan Accumulated Benefit Obligation
DefinedBenefitPlanAccumulatedBenefitObligation
|
9600000000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
|
102000000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
|
4000000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
119000000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
4000000 | USD |
| CY2013 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2298000000 | USD |
| CY2014 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2293000000 | USD |
| CY2015 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2395000000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
21000000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
29000000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
|
225000000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
|
250000000 | USD |
| CY2014Q4 | us-gaap |
Derivative Instruments And Hedges Liabilities
DerivativeInstrumentsAndHedgesLiabilities
|
138000000 | USD |
| CY2015Q4 | us-gaap |
Derivative Instruments And Hedges Liabilities
DerivativeInstrumentsAndHedgesLiabilities
|
156000000 | USD |
| CY2013 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1762000000 | USD |
| CY2014 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1866000000 | USD |
| CY2015 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1959000000 | USD |
| CY2013 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.88 | |
| CY2014Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.39 | |
| CY2014Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.68 | |
| CY2014Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.80 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.31 | |
| CY2014 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.19 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.56 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.69 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.05 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.30 | |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.60 | |
| CY2013 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.87 | |
| CY2014Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.39 | |
| CY2014Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.68 | |
| CY2014Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.80 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.31 | |
| CY2014 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.18 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.56 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.69 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.05 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.30 | |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.59 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.331 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.325 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.329 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
0.016 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
0.014 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
0.012 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.015 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.014 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.012 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.005 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.003 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.003 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.025 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.023 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.019 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.012 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.016 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.015 | |
| CY2013 | us-gaap |
Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
|
204000000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
|
400000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
|
154000000 | USD |
| CY2013 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
10000000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
10000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
2000000 | USD |
| CY2013 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
30000000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
48000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
19000000 | USD |
| CY2014Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
930000000 | USD |
| CY2015Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
868000000 | USD |
| CY2013 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
749000000 | USD |
| CY2014 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
870000000 | USD |
| CY2015 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
1089000000 | USD |
| CY2013 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
2559000000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
3008000000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
3629000000 | USD |
| CY2013 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
849000000 | USD |
| CY2014 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
977000000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1194000000 | USD |
| CY2013 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
139000000 | USD |
| CY2014 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
272000000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-9000000 | USD |
| CY2014Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
0 | USD |
| CY2015Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
144000000 | USD |
| CY2014Q4 | us-gaap |
Income Taxes Receivable Noncurrent
IncomeTaxesReceivableNoncurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Income Taxes Receivable Noncurrent
IncomeTaxesReceivableNoncurrent
|
413000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
72000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
267000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-353000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
|
-138000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
|
255000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
|
-41000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
|
-481000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
|
-408000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
|
-61000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
0 | USD |
| CY2014 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
0 | USD |
| CY2015 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
413000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
11000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
57000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
108000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
16000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
109000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
98000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories
IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories
|
-36000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories
IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories
|
67000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories
IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories
|
44000000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
153000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
352000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-243000000 | USD |
| CY2013 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
4000000 | shares |
| CY2014 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
4000000 | shares |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
4000000 | shares |
| CY2013 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
824000000 | USD |
| CY2014 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
835000000 | USD |
| CY2015 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
840000000 | USD |
| CY2013 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
92000000 | USD |
| CY2014 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
111000000 | USD |
| CY2015 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
124000000 | USD |
| CY2013 | us-gaap |
Interest Paid Net
InterestPaidNet
|
759000000 | USD |
| CY2014 | us-gaap |
Interest Paid Net
InterestPaidNet
|
732000000 | USD |
| CY2015 | us-gaap |
Interest Paid Net
InterestPaidNet
|
809000000 | USD |
| CY2014Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
295000000 | USD |
| CY2015Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
249000000 | USD |
| CY2013 | us-gaap |
Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
|
19000000 | USD |
| CY2014 | us-gaap |
Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
|
19000000 | USD |
| CY2015 | us-gaap |
Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
|
23000000 | USD |
| CY2013 | us-gaap |
Investment Tax Credit
InvestmentTaxCredit
|
302000000 | USD |
| CY2014 | us-gaap |
Investment Tax Credit
InvestmentTaxCredit
|
35000000 | USD |
| CY2015 | us-gaap |
Investment Tax Credit
InvestmentTaxCredit
|
-48000000 | USD |
| CY2014Q4 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Current
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustCurrent
|
206000000 | USD |
| CY2015Q4 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Current
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustCurrent
|
206000000 | USD |
| CY2013 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
123000000 | USD |
| CY2014 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
118000000 | USD |
| CY2015 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
130000000 | USD |
| CY2014Q4 | us-gaap |
Leveraged Leases Balance Sheet Investment In Leveraged Leases Net
LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet
|
743000000 | USD |
| CY2015Q4 | us-gaap |
Leveraged Leases Balance Sheet Investment In Leveraged Leases Net
LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet
|
755000000 | USD |
| CY2014Q4 | us-gaap |
Liabilities
Liabilities
|
48893000000 | USD |
| CY2015Q4 | us-gaap |
Liabilities
Liabilities
|
56175000000 | USD |
| CY2014Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
70233000000 | USD |
| CY2015Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
78318000000 | USD |
| CY2014Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
8961000000 | USD |
| CY2015Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
9129000000 | USD |
| CY2015 | us-gaap |
Line Of Credit Facility Commitment Fee Percentage
LineOfCreditFacilityCommitmentFeePercentage
|
0.0025 | |
| CY2015Q4 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
6505000000 | USD |
| CY2015Q4 | us-gaap |
Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
|
6428000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
20644000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
24688000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
3329000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
2674000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
10150000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
11185000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
1360000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
1360000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
425000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
1327000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
1175000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
1176000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
850000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
1697000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
1495000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
1995000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
2492000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
2752000000 | USD |
| CY2014Q4 | us-gaap |
Longterm Pollution Control Bond Current
LongtermPollutionControlBondCurrent
|
152000000 | USD |
| CY2015Q4 | us-gaap |
Longterm Pollution Control Bond Current
LongtermPollutionControlBondCurrent
|
4000000 | USD |
| CY2014Q4 | us-gaap |
Minority Interest
MinorityInterest
|
977000000 | USD |
| CY2015Q4 | us-gaap |
Minority Interest
MinorityInterest
|
1390000000 | USD |
| CY2015 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
18000000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-324000000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
644000000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
1700000000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-5742000000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-6408000000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-7280000000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
6097000000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
5815000000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
6274000000 | USD |
| CY2013 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2014 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2015 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
14000000 | USD |
| CY2013 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
1644000000 | USD |
| CY2014Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
351000000 | USD |
| CY2014Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
611000000 | USD |
| CY2014Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
718000000 | USD |
| CY2014Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
283000000 | USD |
| CY2014 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
1963000000 | USD |
| CY2015Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
508000000 | USD |
| CY2015Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
629000000 | USD |
| CY2015Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
959000000 | USD |
| CY2015Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
271000000 | USD |
| CY2015 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
2367000000 | USD |
| CY2014Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
4664000000 | USD |
| CY2015Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
5564000000 | USD |
| CY2014 | us-gaap |
Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
|
2000000 | USD |
| CY2015 | us-gaap |
Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
|
-12000000 | USD |
| CY2013 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-696000000 | USD |
| CY2014 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-634000000 | USD |
| CY2015 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-653000000 | USD |
| CY2013 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
3255000000 | USD |
| CY2014Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
700000000 | USD |
| CY2014Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1103000000 | USD |
| CY2014Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1278000000 | USD |
| CY2014Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
561000000 | USD |
| CY2014 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
3642000000 | USD |
| CY2015Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
957000000 | USD |
| CY2015Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1098000000 | USD |
| CY2015Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1649000000 | USD |
| CY2015Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
578000000 | USD |
| CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
4282000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
1125000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
121000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
53000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
61000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
81000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
103000000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
706000000 | USD |
| CY2014Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
50000000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
71000000 | USD |
| CY2014Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
922000000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
737000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
36000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-51000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-2000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
22000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-32000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-1000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
48000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-53000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-2000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
|
-9000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
|
-5000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
|
-6000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-5000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-3000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-4000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-6000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-3000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-7000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-4000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-2000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-4000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
0 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-10000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-13000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
0 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-6000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-8000000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-3000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
0 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
0 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-2000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD |
| CY2014Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
1039000000 | USD |
| CY2015Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
1061000000 | USD |
| CY2014Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
374000000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
590000000 | USD |
| CY2014Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
589000000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
720000000 | USD |
| CY2014Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
4719000000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
6808000000 | USD |
| CY2014Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
775000000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
829000000 | USD |
| CY2014Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
203000000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
485000000 | USD |
| CY2013 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
41000000 | USD |
| CY2014 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
39000000 | USD |
| CY2015 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
39000000 | USD |
| CY2013 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-81000000 | USD |
| CY2014 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-63000000 | USD |
| CY2015 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-62000000 | USD |
| CY2013 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
52000000 | USD |
| CY2014 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
61000000 | USD |
| CY2015 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
47000000 | USD |
| CY2013 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-124000000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
17000000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-87000000 | USD |
| CY2013 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
131000000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
170000000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
167000000 | USD |
| CY2013 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
20000000 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
5000000 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
115000000 | USD |
| CY2013 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
0 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
0 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
412000000 | USD |
| CY2013 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1762000000 | USD |
| CY2014 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1866000000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1959000000 | USD |
| CY2013 | us-gaap |
Payments Of Dividends Minority Interest
PaymentsOfDividendsMinorityInterest
|
66000000 | USD |
| CY2014 | us-gaap |
Payments Of Dividends Minority Interest
PaymentsOfDividendsMinorityInterest
|
68000000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Minority Interest
PaymentsOfDividendsMinorityInterest
|
59000000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
132000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
731000000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
1719000000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
5868000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
6522000000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
6169000000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
5331000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
5246000000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
5674000000 | USD |
| CY2013 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
986000000 | USD |
| CY2014 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
916000000 | USD |
| CY2015 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
1424000000 | USD |
| CY2013 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
131000000 | USD |
| CY2014 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
-515000000 | USD |
| CY2015 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
76000000 | USD |
| CY2014Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
2432000000 | USD |
| CY2015Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
2582000000 | USD |
| CY2013 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
66000000 | USD |
| CY2014 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
68000000 | USD |
| CY2015 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
54000000 | USD |
| CY2014Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
665000000 | USD |
| CY2015Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
495000000 | USD |
| CY2013 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
984000000 | USD |
| CY2014 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
914000000 | USD |
| CY2015 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
1418000000 | USD |
| CY2013 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
695000000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
806000000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
256000000 | USD |
| CY2013 | us-gaap |
Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
|
2938000000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
|
3169000000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
|
7029000000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
256000000 | USD |
| CY2013 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
17000000 | USD |
| CY2014 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
8000000 | USD |
| CY2015 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
341000000 | USD |
| CY2013 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
42000000 | USD |
| CY2014 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-33000000 | USD |
| CY2015 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-75000000 | USD |
| CY2013 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
662000000 | USD |
| CY2014 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-676000000 | USD |
| CY2015 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
73000000 | USD |
| CY2013 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
| CY2014 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
| CY2015 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
755000000 | USD |
| CY2013 | us-gaap |
Profit Loss
ProfitLoss
|
1710000000 | USD |
| CY2014 | us-gaap |
Profit Loss
ProfitLoss
|
2031000000 | USD |
| CY2015 | us-gaap |
Profit Loss
ProfitLoss
|
2435000000 | USD |
| CY2014Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
70013000000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
75118000000 | USD |
| CY2014Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
54868000000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
61114000000 | USD |
| CY2013 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
190000000 | USD |
| CY2014 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
245000000 | USD |
| CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
226000000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Amount Of Acquisition Adjustments1
PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1
|
123000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Amount Of Acquisition Adjustments1
PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1
|
123000000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
17123000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
17670000000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
|
37892000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
|
41648000000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
793000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
756000000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
70013000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
75118000000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
9884000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
10544000000 | USD |
| CY2014Q4 | us-gaap |
Redeemable Noncontrolling Interest Equity Carrying Amount
RedeemableNoncontrollingInterestEquityCarryingAmount
|
39000000 | USD |
| CY2015Q4 | us-gaap |
Redeemable Noncontrolling Interest Equity Carrying Amount
RedeemableNoncontrollingInterestEquityCarryingAmount
|
43000000 | USD |
| CY2013 | us-gaap |
Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
|
2830000000 | USD |
| CY2014 | us-gaap |
Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
|
816000000 | USD |
| CY2015 | us-gaap |
Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
|
3604000000 | USD |
| CY2013 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
| CY2014 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
| CY2015 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
255000000 | USD |
| CY2014Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
9609000000 | USD |
| CY2015Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
10010000000 | USD |
| CY2013 | us-gaap |
Revenues
Revenues
|
17087000000 | USD |
| CY2014Q1 | us-gaap |
Revenues
Revenues
|
4644000000 | USD |
| CY2014Q2 | us-gaap |
Revenues
Revenues
|
4467000000 | USD |
| CY2014Q3 | us-gaap |
Revenues
Revenues
|
5339000000 | USD |
| CY2014Q4 | us-gaap |
Revenues
Revenues
|
4017000000 | USD |
| CY2014 | us-gaap |
Revenues
Revenues
|
18467000000 | USD |
| CY2015Q1 | us-gaap |
Revenues
Revenues
|
4183000000 | USD |
| CY2015Q2 | us-gaap |
Revenues
Revenues
|
4337000000 | USD |
| CY2015Q3 | us-gaap |
Revenues
Revenues
|
5401000000 | USD |
| CY2015Q4 | us-gaap |
Revenues
Revenues
|
3568000000 | USD |
| CY2015 | us-gaap |
Revenues
Revenues
|
17489000000 | USD |
| CY2014Q4 | us-gaap |
Senior Notes Current
SeniorNotesCurrent
|
2375000000 | USD |
| CY2015Q4 | us-gaap |
Senior Notes Current
SeniorNotesCurrent
|
1810000000 | USD |
| CY2013 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.044 | |
| CY2014 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.049 | |
| CY2013 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
|
0.166 | |
| CY2014 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
|
0.146 | |
| CY2013 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.009 | |
| CY2014 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.015 | |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
25857590 | shares |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
40.53 | |
| CY2013 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
77000000 | USD |
| CY2014 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
125000000 | USD |
| CY2015 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
48000000 | USD |
| CY2015 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
|
146684 | shares |
| CY2015 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
|
42.31 | |
| CY2013 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
2.93 | |
| CY2014 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
2.20 | |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
209000000 | USD |
| CY2014Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
39929319 | shares |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
35749906 | shares |
| CY2014Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
40.55 | |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
40.96 | |
| CY2015 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
36.84 | |
| CY2013 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
|
P5Y | |
| CY2014 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
|
P5Y | |
| CY2015Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
162000000 | USD |
| CY2015 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P6Y | |
| CY2015 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P6Y | |
| CY2014Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
803000000 | USD |
| CY2015Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
1376000000 | USD |
| CY2014Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.003 | |
| CY2015Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.009 | |
| CY2013 | us-gaap |
State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
|
100000000 | USD |
| CY2014 | us-gaap |
State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
|
107000000 | USD |
| CY2015 | us-gaap |
State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
|
105000000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
4032729 | shares |
| CY2013 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
765000000 | USD |
| CY2014 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
806000000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
256000000 | USD |
| CY2013 | us-gaap |
Stock Option Plan Expense
StockOptionPlanExpense
|
59000000 | USD |
| CY2014 | us-gaap |
Stock Option Plan Expense
StockOptionPlanExpense
|
63000000 | USD |
| CY2015 | us-gaap |
Stock Option Plan Expense
StockOptionPlanExpense
|
99000000 | USD |
| CY2015 | us-gaap |
Stock Redeemed Or Called During Period Value
StockRedeemedOrCalledDuringPeriodValue
|
150000000 | USD |
| CY2015Q1 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
2600000 | shares |
| CY2015 | us-gaap |
Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
|
115000000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
20592000000 | USD |
| CY2012Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
19004000000 | USD |
| CY2013Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
19764000000 | USD |
| CY2014Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
20926000000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
21982000000 | USD |
| CY2013 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
0 | USD |
| CY2014 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
-7000000 | USD |
| CY2015 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
2000000 | USD |
| CY2015Q4 | us-gaap |
Tax Credit Carryforward Amount
TaxCreditCarryforwardAmount
|
554000000 | USD |
| CY2013 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
934000000 | USD |
| CY2014 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
981000000 | USD |
| CY2015 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
997000000 | USD |
| CY2013Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
375000000 | USD |
| CY2014Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
375000000 | USD |
| CY2015Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
118000000 | USD |
| CY2014Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
700000 | shares |
| CY2015Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
3400000 | shares |
| CY2014Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
26000000 | USD |
| CY2015Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
142000000 | USD |
| CY2013Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
139000000 | USD |
| CY2014Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
202000000 | USD |
| CY2015Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
241000000 | USD |
| CY2014Q4 | us-gaap |
Unamortized Loss Reacquired Debt Noncurrent
UnamortizedLossReacquiredDebtNoncurrent
|
243000000 | USD |
| CY2015Q4 | us-gaap |
Unamortized Loss Reacquired Debt Noncurrent
UnamortizedLossReacquiredDebtNoncurrent
|
227000000 | USD |
| CY2012Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
70000000 | USD |
| CY2013Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
7000000 | USD |
| CY2014Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
170000000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
433000000 | USD |
| CY2013 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
66000000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
3000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
20000000 | USD |
| CY2013 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
3000000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
64000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
43000000 | USD |
| CY2013 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
0 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
102000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
240000000 | USD |
| CY2013Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
7000000 | USD |
| CY2014Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
10000000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
10000000 | USD |
| CY2013 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
5510000000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
6005000000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
4750000000 | USD |
| CY2013 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
3846000000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
4354000000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
4416000000 | USD |
| CY2013 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
881000000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
901000000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
914000000 | shares |
| CY2013 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
877000000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
897000000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
910000000 | shares |
