XML 65 R52.htm IDEA: XBRL DOCUMENT v3.20.2
Accumulated Other Comprehensive Loss - Tax Impact (Detail) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Jun. 30, 2020
Sep. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Outstanding derivatives   $ 0
Treasury rate lock [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Interest rate derivative asset notional amount $ 400 500
Cash received on derivative $ 1  
Derivative Instruments [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other comprehensive income (loss) before reclassifications, tax   1
Amounts reclassified from accumulated other comprehensive (income) loss, tax   2
Available for sale Securities [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other comprehensive income (loss) before reclassifications, tax   3
Amounts reclassified from accumulated other comprehensive (income) loss, tax   0
Foreign Currency Translation Adjustments [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other comprehensive income (loss) before reclassifications, tax   0
Amounts reclassified from accumulated other comprehensive (income) loss, tax   0
Post - Retirement Benefit Obligation [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other comprehensive income (loss) before reclassifications, tax   0
Amounts reclassified from accumulated other comprehensive (income) loss, tax   $ 0