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Commitments and Contingencies - Guarantees and Indemnifications (Detail)
$ in Millions
Dec. 31, 2021
USD ($)
Loss Contingencies [Line Items]  
Expires Within One Year $ 87
Expires After One Year 61
Total Outstanding Amount 148
Maximum Potential Amount of Future Payments 291
Financial stand-by letters of credit  
Loss Contingencies [Line Items]  
Expires Within One Year 77
Expires After One Year 60
Total Outstanding Amount 137
Maximum Potential Amount of Future Payments 271
Performance stand-by letters of credit  
Loss Contingencies [Line Items]  
Expires Within One Year 3
Total Outstanding Amount 3
Maximum Potential Amount of Future Payments 3
Commercial Letters of Credit  
Loss Contingencies [Line Items]  
Expires Within One Year 7
Expires After One Year 1
Total Outstanding Amount 8
Maximum Potential Amount of Future Payments $ 17