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Properties, Plants, and Equipment, net
 3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
Properties, Plants, and Equipment, net Properties, Plants, and Equipment, net
March 31, 2021December 31, 2020
Land and land rights$92 $98 
Structures1,020 1,033 
Machinery and equipment3,856 3,879 
4,968 5,010 
Less: accumulated depreciation and amortization2,644 2,626 
2,324 2,384 
Construction work-in-progress200 208 
Properties, plants, and equipment, net$2,524 $2,592 

The Company incurred capital expenditures which remained unpaid at March 31, 2021 and March 31, 2020 of $28 and $48, respectively, which result in cash outflows for investing activities in subsequent periods.