XML 110 R91.htm IDEA: XBRL DOCUMENT v3.20.4
Accumulated Other Comprehensive (Loss) Income - Impact and Location of AOCI Reclassifications in Consolidated Statements of Income (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]      
Other Expense $ (17) $ (9) $ (8)
Income tax benefit 153 (7) 3
Net income (loss) 129 (20) 30
Amount Reclassified from of Accumulated Other Comprehensive Income      
Defined Benefit Plan Disclosure [Line Items]      
Other Expense (10) (7) (6)
Income tax benefit 1 1 1
Net income (loss) $ (9) $ (6) $ (5)