XML 85 R69.htm IDEA: XBRL DOCUMENT v3.22.0.1
Employee Benefit Plans - Plan's Assets Carried at Fair Value (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements $ 571 $ 582  
Equity Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 8 108  
Bonds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 372 253  
Other Contract [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 191 221  
Fair Value, Inputs, Level 2 [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 512 516  
Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 8 108  
Fair Value, Inputs, Level 2 [Member] | Bonds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 372 253  
Fair Value, Inputs, Level 2 [Member] | Other Contract [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 132 155  
Fair Value, Inputs, Level 3 [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements 59 66 $ 63
Fair Value, Inputs, Level 3 [Member] | Other Contract [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total Fair Value Measurements $ 59 $ 66