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v3.19.2

Debt And Related Expenses (Schedule Of Debt Instruments and Balances) (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |
Short-term debt |  |  | $ 162
Net discount on debentures and notes |  | $ (20) | (21)
Debt issuance costs |  | (35) | (36)
Total debt |  | 4,294 | 4,454
Total long-term debt |  | $ 4,294 | 4,292
6.30% Due January 15, 2019 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Short-term debt |  |  | $ 162
Debt, maturity date |  | Jan. 15, 2019 |
Debt interest rate, stated percentage |  | 6.30% | 6.30%
5.85% due December 15, 2025 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross |  | $ 485 | $ 485
Debt, maturity date |  | Dec. 15, 2025 |
Debt interest rate, stated percentage |  | 5.85% | 5.85%
7.50% due September 15, 2027 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross |  | $ 73 | $ 73
Debt, maturity date |  | Sep. 15, 2027 |
Debt interest rate, stated percentage |  | 7.50% | 7.50%
7.875% due September 30, 2031 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross |  | $ 675 | $ 675
Debt, maturity date |  | Sep. 30, 2031 |
Debt interest rate, stated percentage |  | 7.875% | 7.875%
7.95% due April 15, 2032 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross |  | $ 366 | $ 366
Debt, maturity date |  | Apr. 15, 2032 |
Debt interest rate, stated percentage |  | 7.95% | 7.95%
5.60% due July 15, 2041 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross | [1] | $ 1,250 | $ 1,250
Debt, maturity date |  | Jul. 15, 2041 |
Debt interest rate, stated percentage |  | 5.60% | 5.60%
4.75% due May 15, 2042 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross | [1] | $ 750 | $ 750
Debt, maturity date |  | May 15, 2042 |
Debt interest rate, stated percentage |  | 4.75% | 4.75%
5.00% due June 15, 2045 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross |  | $ 750 | $ 750
Debt, maturity date |  | Jun. 15, 2045 |
Debt interest rate, stated percentage |  | 5.00% | 5.00%
[1] | These senior notes were included in the 2018 tender offer repurchases discussed below

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