XML 87 R68.htm IDEA: XBRL DOCUMENT v3.19.2
Retirement Benefits (Narrative) (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Defined Benefit Plan Disclosure [Line Items]    
Contributions by employer $ 49  
Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Estimated future employer contributions in current fiscal year 62  
United States    
Defined Benefit Plan Disclosure [Line Items]    
Defined contribution plan, cost recognized $ 70 $ 67
United States | Equity Funds    
Defined Benefit Plan Disclosure [Line Items]    
Target asset allocation, percentage 64.00%  
Actual asset allocation percentage of equity 62.00%  
United States | Fixed Income Funds    
Defined Benefit Plan Disclosure [Line Items]    
Target asset allocation, percentage 36.00%  
Actual asset allocation percentage of equity 38.00%  
United Kingdom    
Defined Benefit Plan Disclosure [Line Items]    
Defined contribution plan, cost recognized $ 46 $ 42
United Kingdom | Equity Funds    
Defined Benefit Plan Disclosure [Line Items]    
Target asset allocation, percentage 34.00%  
Actual asset allocation percentage of equity 36.00%  
United Kingdom | Fixed Income Funds    
Defined Benefit Plan Disclosure [Line Items]    
Target asset allocation, percentage 66.00%  
Actual asset allocation percentage of equity 64.00%  
United Kingdom | Geographic Concentration Risk | Non-U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Concentration risk percentage 81.00%  
Jardine Lloyd Thompson Group plc    
Defined Benefit Plan Disclosure [Line Items]    
Pension, post-retirement and post-employment liabilities $ 234  
Pension, post-retirement and post-employment plan assets $ 700