XML 28 R18.htm IDEA: XBRL DOCUMENT v3.21.1
Employee Retirement Plans
 3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Employee Retirement Plans EMPLOYEE RETIREMENT PLANS
Net periodic pension cost for our defined-benefit pension plans, with the exception of service cost, is recorded in other income (expense), net, in our condensed consolidated statement of operations. Net periodic pension cost for our defined-benefit pension plans was as follows, in millions: 
 Three Months Ended March 31,
 20212020
 QualifiedNon-QualifiedQualifiedNon-Qualified
Service cost$1 $— $1 $— 
Interest cost8 1 6 1 
Expected return on plan assets(4)— (6)— 
Amortization of net loss6 1 6 1 
Net periodic pension cost$11 $2 $7 $2 

As of January 1, 2010, substantially all of our domestic and foreign qualified and domestic non-qualified defined-benefit pension plans were frozen to future benefit accruals. In December 2019, our Board of Directors approved the termination of our qualified domestic defined-benefit pension plans. These plans are expected to be settled in the second quarter of 2021.