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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Assets and Liabilities Measured at Fair Value on a Recurring Basis
At December 31, 2021At December 31, 2020
TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3
Marketable securities$35 $35 $ $ $31 $31 $— $— 
Derivatives - not designated313 285 28  74 37 37 — 
Total assets at fair value$348 $320 $28 $ $105 $68 $37 $— 
Derivatives - not designated72 24 48  173 58 115 — 
Total liabilities at fair value$72 $24 $48 $ $173 $58 $115 $— 
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
At December 31At December 31
Before-Tax LossBefore-Tax Loss
TotalLevel 1Level 2Level 3Year 2021TotalLevel 1Level 2Level 3Year 2020
Properties, plant and equipment, net (held and used)$124 $ $ $124 $414 $2,443 $— $20 $2,423 $2,599 
Properties, plant and equipment, net (held for sale)    — 1,418 — 1,418 — 193 
Investments and advances16   16 32 28 — — 28 2,555 
Total nonrecurring assets at fair value$140 $ $ $140 $446 $3,889 $— $1,438 $2,451 $5,347