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v3.19.3

Financing (Senior Notes) (Narrative) (Details) $ in Millions |  | 9 Months Ended
--- | --- | ---
May 20, 2019 USD ($) d Rate | Sep. 30, 2019 USD ($) d Rate
$500 million, 3.900% Senior Notes due 2029 [Member] |  |
Financing |  |
Senior notes, face amount | $ | $ 500 | $ 500
Interest rate of senior notes | 3.90% | 3.90%
Percentage of face value of debt instrument | 99.991% |
Number of days in annual interest calculation period | d | 360 |
Senior notes [Member] |  |
Financing |  |
Aggregate principle of unsecured senior notes | $ |  | $ 3,700
Number of days in annual interest calculation period | d |  | 360
Minimum [Member] | Senior notes [Member] |  |
Financing |  |
Interest rate of senior notes |  | 3.55%
Maximum [Member] | Senior notes [Member] |  |
Financing |  |
Interest rate of senior notes |  | 4.875%

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