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Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Interest Rate Swap Agreements Designated as Cash Flow Hedges | The following table sets forth our interest rate swap agreements, which have been designated as cash flow hedges, at March 31, 2018 (dollars in millions):
|  | Notional Amount |  |  | Maturity Date |  |  | Fair Value |
Pay-fixed interest rate swaps |  | $ | 2,000 |  |  |  | December 2021 |  |  | $ | 74 |
Pay-fixed interest rate swaps |  |  | 500 |  |  |  | December 2022 |  |  |  | 11 |
Effect of Interest Rate on Results of Operations | The following table presents the effect of our interest rate swaps on our results of operations for the quarter ended March 31, 2018 (dollars in millions):
Derivatives in Cash Flow Hedging Relationships |  | Amount of Gain Recognized in OCI on Derivatives, Net of Tax |
Interest rate swaps |  | $ | 27 |

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- Definition Tabular disclosure for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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