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Segment Information - Schedule of Segment Reporting Information, by Segment (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |
Interest expense | $ 144 | $ 156 | $ 281 | $ 302
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest income |  | 2 | 1 | 5
Interest expense | $ 7 | $ 10 | $ 15 | $ 20

X
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