XML 166 R128.htm IDEA: XBRL DOCUMENT v3.20.1
Segmented Information - Summary of Net Assets for Company's Reporting Segments (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Summary of Net Assets for Company's Reporting Segments [Line Items]    
Segment Net Assets $ 25,790 $ 25,945
Cash and cash equivalents 1,276 684
Deferred tax assets 308 300
Income taxes receivable   57
Accounts payable 5,628 6,094
Accrued salaries and wages 753 769
Other accrued liabilities 1,800 1,734
Segment Reconciling Items [Member] | Deduct Assets Not Included in Segment Net Assets [Member]    
Summary of Net Assets for Company's Reporting Segments [Line Items]    
Segment Net Assets 25,790 25,945
Cash and cash equivalents (1,276) (684)
Deferred tax assets (308) (300)
Long-term receivables from joint venture partners (71) (71)
Income taxes receivable   (57)
Accounts payable (5,628) (6,094)
Accrued salaries and wages (753) (769)
Other accrued liabilities (1,800) (1,734)
Liabilities held for sale   (408)
Operating Segments [Member]    
Summary of Net Assets for Company's Reporting Segments [Line Items]    
Segment Net Assets $ 15,954 $ 15,828