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Leases (Tables)
 12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Assets and liabilities
The following table presents operating lease ROU assets and lease liabilities.
(In millions)December 31, 2020December 31, 2019
Operating lease ROU assets$199 $220 
Operating lease liabilities279 301 
Operating lease, liability, maturity
The following table presents the maturities of operating lease liabilities
(In millions)December 31, 2020
2021$44 
202241 
202336 
202429 
202524 
Thereafter163 
Total lease payments337 
Less: Discount(58)
Total operating lease liabilities$279 
Lease cost
The following table presents the weighted average remaining lease term for operating leases and weighted average discount rate used in calculating operating lease ROU assets.
December 31, 2020December 31, 2019
Weighted average remaining lease term10.3 years10.8 years
Weighted average discount rate3.4 %3.4 %