Annual report pursuant to Section 13 and 15(d)

INVESTMENTS AND RESTRICTED CASH - Summary of Marketable Securities (Detail)

v3.20.4
INVESTMENTS AND RESTRICTED CASH - Summary of Marketable Securities (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Trading, Amortized Cost $ 2 $ 114
Trading Securities, Gross Unrealized Gain 0 0
Trading Securities, Gross Unrealized Loss 0 0
Debt Securities, Trading, and Equity Securities, FV-NI 2 114
Available-for-sale Securities, Amortized Cost Basis 396 383
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 8 6
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 0
Available-for-sale Securities, Current 404 389
Marketable Securities, Amortized Cost, Total 398 497
Marketable Securities, Gross Unrealized Gain 8 6
Marketable Securities, Gross Unrealized Loss 0 0
Marketable securities 406 503
U.S. government and agency debt securities    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Amortized Cost Basis 181 191
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 3 2
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 0
Available-for-sale Securities, Current 184 193
Mortgage and asset-backed debt securities    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Amortized Cost Basis 30 46
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 1 1
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 0
Available-for-sale Securities, Current 31 47
Corporate debt securities    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Trading, Amortized Cost 0 112
Trading Securities, Gross Unrealized Gain 0 0
Trading Securities, Gross Unrealized Loss 0 0
Debt Securities, Trading, and Equity Securities, FV-NI 0 112
Available-for-sale Securities, Amortized Cost Basis 174 130
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 4 3
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 0
Available-for-sale Securities, Current 178 133
Equity securities    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Trading, Amortized Cost 2 2
Trading Securities, Gross Unrealized Gain 0 0
Trading Securities, Gross Unrealized Loss 0 0
Debt Securities, Trading, and Equity Securities, FV-NI 2 2
Non-U.S. government debt securities    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Amortized Cost Basis 11 16
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 0 0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 0
Available-for-sale Securities, Current $ 11 $ 16