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v3.21.2

Segment Information - Schedule of Segment Reporting Information, by Segment (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Interest expense | $ 136 | $ 144 | $ 272 | $ 281
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest income | 1 |  | 1 | 1
Interest expense | $ 4 | $ 7 | $ 8 | $ 15

X
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