CAPITAL STRUCTURE FINANCIAL POLICIES - (Tables)

12 Months Ended

Dec. 31, 2019

CAPITAL STRUCTURE FINANCIAL POLICIES

Schedule of components of ratios

($ millions)			Capital Measure Target	December 31, 2019	December 31, 2018
Components of ratios
	Short-term debt			2 155	3 231
	Current portion of long-term debt			—	229
	Current portion of long-term lease liabilities			310	—
	Long-term debt			12 884	13 890
	Long-term lease liabilities			2 621	—
		Total debt		17 970	17 350
	Less: Cash and cash equivalents			1 960	2 221
		Net debt		16 010	15 129
	Shareholders' equity			42 042	44 005
	Total capitalization (total debt plus shareholders' equity)			60 012	61 355
	Funds from operations(1)			10 818	10 172
Net debt to funds from operations			<3.0 times	1.5	1.5
Total debt to total debt plus shareholders' equity			20% – 35%	30%	28%

(1) Funds from operations is calculated as cash flow from operating activities before changes in non-cash working capital, and is a non-GAAP financial measure.