XML 40 R61.htm IDEA: XBRL DOCUMENT v3.20.1
Condensed Consolidating Financial Statements - Cash Flows (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Condensed Cash Flow Statements Captions [Line Items]    
Operating activities $ 765 $ 890
Investing activities (503) (800)
Financing activities (668) 42
Effect of exchange rate changes on cash, cash equivalents and restricted cash and cash equivalents (4)  
Increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents (410) 132
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period 3,647 183
Cash, cash equivalents and restricted cash and cash equivalents at end of period 3,237 315
WM [Member] | Reportable Legal Entities [Member]    
Condensed Cash Flow Statements Captions [Line Items]    
Operating activities 17  
Intercompany activity (453)  
Increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents (436)  
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period 3,485  
Cash, cash equivalents and restricted cash and cash equivalents at end of period 3,049  
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]    
Condensed Cash Flow Statements Captions [Line Items]    
Operating activities 748 890
Investing activities (503) (800)
Financing activities (668) 42
Effect of exchange rate changes on cash, cash equivalents and restricted cash and cash equivalents (4)  
Intercompany activity 453  
Increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents 26 132
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period 162 183
Cash, cash equivalents and restricted cash and cash equivalents at end of period $ 188 $ 315