Quarterly report pursuant to Section 13 or 15(d)

CASH AND INVESTMENTS - Summary of Marketable Securities (Detail)

v3.19.3
CASH AND INVESTMENTS - Summary of Marketable Securities (Detail) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Schedule of Marketable Securities [Line Items]    
Debt Securities, Trading, Amortized Cost $ 111 $ 139
Trading Securities, Gross Unrealized Gain 0 0
Trading Securities, Gross Unrealized Loss 0 0
Debt Securities, Trading, and Equity Securities, FV-NI 111 139
Available-for-sale Securities, Amortized Cost Basis 381 674
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 6 1
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 (4)
Available-for-sale Securities, Current 387 671
Total Amortized Cost 492 813
Marketable Securities, Gross Unrealized Gain 6 1
Marketable Securities, Gross Unrealized Loss 0 (4)
Total Estimated Fair Value 498 810
Corporate debt securities    
Schedule of Marketable Securities [Line Items]    
Debt Securities, Trading, Amortized Cost 109 137
Trading Securities, Gross Unrealized Gain 0 0
Trading Securities, Gross Unrealized Loss 0 0
Debt Securities, Trading, and Equity Securities, FV-NI 109 137
Available-for-sale Securities, Amortized Cost Basis 150 275
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 3 0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 (2)
Available-for-sale Securities, Current 153 273
U.S. government and agency debt securities    
Schedule of Marketable Securities [Line Items]    
Available-for-sale Securities, Amortized Cost Basis 161 297
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 2 1
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 (1)
Available-for-sale Securities, Current 163 297
Mortgage and asset-backed debt securities    
Schedule of Marketable Securities [Line Items]    
Available-for-sale Securities, Amortized Cost Basis 54 82
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 1 0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax 0 (1)
Available-for-sale Securities, Current 55 81
Equity securities    
Schedule of Marketable Securities [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    
Schedule of Marketable Securities [Line Items]    
Available-for-sale Securities, Amortized Cost Basis 16 20
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 $ 16 $ 20