XML 46 R35.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Debt (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 03, 2017 | Jun. 30, 2017 | Sep. 30, 2016 | Jun. 30, 2017
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 3,085,000,000 | $ 2,460,000,000 | $ 3,085,000,000
Debt Instrument, Unamortized Discount (Premium), Net |  | (4,370,000) | 4,270,000 | (4,370,000)
Debt Issuance Costs, Net |  | 22,636,000 | 16,951,000 | 22,636,000
Current maturities of long-term debt |  | 0 | 250,000,000 | 0
Long-term debt |  | 3,066,734,000 | 2,188,779,000 | 3,066,734,000
Loss on settlement of interest rate swaps |  | 37,000,000 |  | 37,000,000
Line Of Credit Facility [Line Items] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,500,000,000 |  | 1,500,000,000
Long Term Debt Other Disclosures [Abstract] |  |  |  |
Term Loan Agreement, Maximum Borrowing Capacity |  | 200,000,000 |  | 200,000,000
Term Loan Agreement, Incremental Borrowings |  | 1,000,000 |  | 1,000,000
Term Loan Agreement, Amount Outstanding |  | 125,000,000 |  | 125,000,000
Commercial Paper |  | $ 258,600,000 | 829,800,000 | $ 258,600,000
Required by Covenant [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Ratio of Total Debt to Total Capital |  | 70.00% |  | 70.00%
Actual [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Ratio of Total Debt to Total Capital |  | 47.00% |  | 47.00%
Minimum [Member] | Required by Covenant [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Excess of Debt |  | $ 15,000,000 |  | $ 15,000,000
Maximum [Member] | Required by Covenant [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Excess of Debt |  | 100,000,000 |  | 100,000,000
Five Year Unsecured Revolving Credit Agreement [Member] | Commercial Paper [Member] | Regulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,500,000,000 | 1,250,000,000.00 | 1,500,000,000
Line of Credit Facility, Accordion Feature |  | 250,000,000 |  | 250,000,000
Line of Credit Facility, Maximum Borrowing Capacity with Accordion Feature |  | $ 1,750,000,000.00 |  | 1,750,000,000.00
Five Year Unsecured Revolving Credit Agreement [Member] | Commercial Paper [Member] | Minimum [Member] | Regulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 0.00% |  |
Five Year Unsecured Revolving Credit Agreement [Member] | Commercial Paper [Member] | Maximum [Member] | Regulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 1.25% |  |
$15 Million Revolving Credit Note [Member] | Unsecured Revolving Credit Note [Member] | Unregulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Extinguishment of Debt, Amount | $ 15,000,000 |  |  |
$25 Million Bank Loan Agreement [Member] | Unsecured Loan Agreement [Member] | Regulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 25,000,000 |  | 25,000,000
Line of Credit Facility, Fair Value of Amount Outstanding |  | 0 |  | 0
$10 Million Revolving Credit Note [Member] | Unsecured Revolving Credit Note [Member] | Regulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 10,000,000 |  | 10,000,000
Line of Credit Facility, Remaining Borrowing Capacity |  | 4,100,000 |  | 4,100,000
Line of Credit Facility, Fair Value of Amount Outstanding |  | 0 |  | 0
$25 Million Uncommitted Facility [Member] | Uncommitted Revolving Credit Facility [Member] | Unregulated Operation [Member] |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Extinguishment of Debt, Amount | $ 25,000,000 |  |  |
Unsecured Senior Notes Due 2017 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 0 | $ 250,000,000 | $ 0
Debt Instrument, Interest Rate, Stated Percentage |  | 6.35% | 6.35% | 6.35%
Debt Instrument, Maturity Date |  | Jun. 15, 2017 | Jun. 15, 2017 |
Unsecured Senior Notes Due 2019 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 450,000,000 | $ 450,000,000 | $ 450,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 8.50% | 8.50% | 8.50%
Debt Instrument, Maturity Date |  | Mar. 15, 2019 | Mar. 15, 2019 |
Unsecured Senior Notes Due 2034 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 200,000,000 | $ 200,000,000 | $ 200,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 5.95% | 5.95% | 5.95%
Debt Instrument, Maturity Date |  | Oct. 15, 2034 | Oct. 15, 2034 |
Unsecured Senior Notes Due 2041 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 400,000,000 | $ 400,000,000 | $ 400,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 5.50% | 5.50% | 5.50%
Debt Instrument, Maturity Date |  | Jun. 15, 2041 | Jun. 15, 2041 |
Unsecured Senior Notes Due 2043 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 500,000,000 | $ 500,000,000 | $ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 4.15% | 4.15% | 4.15%
Debt Instrument, Maturity Date |  | Jan. 15, 2043 | Jan. 15, 2043 |
Unsecured Senior Notes Due 2044 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 750,000,000 | $ 500,000,000 | $ 750,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 4.125% | 4.125% | 4.125%
Debt Instrument, Maturity Date |  | Oct. 15, 2044 | Oct. 15, 2044 |
Debt Instrument, Interest Rate, Effective Percentage |  | 4.40% |  | 4.40%
Debt Instrument, Increase (Decrease), Net |  | $ 250,000,000 |  |
Medium Term Notes Due 2025 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 10,000,000 | $ 10,000,000 | $ 10,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 6.67% | 6.67% | 6.67%
Debt Instrument, Maturity Date |  | Dec. 15, 2025 | Dec. 15, 2025 |
Unsecured Debentures Due 2028 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 150,000,000 | $ 150,000,000 | $ 150,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 6.75% | 6.75% | 6.75%
Debt Instrument, Maturity Date |  | Jul. 15, 2028 | Jul. 15, 2028 |
Multi-Draw Term Loan Due 2019 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 125,000,000 | $ 0 | $ 125,000,000
Debt Instrument, Maturity Date |  | Jun. 24, 2019 |  |
Unsecured Senior Notes Due 2027 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument Carrying Amount |  | $ 500,000,000 | $ 0 | $ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage |  | 3.00% | 3.00% | 3.00%
Debt Instrument, Maturity Date |  | Jun. 15, 2027 | Jun. 15, 2027 |
Debt Instrument, Interest Rate, Effective Percentage |  | 3.12% |  | 3.12%
Net Proceeds From Issuance of Debt |  |  |  | $ 753,000,000

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