Supplemental Cash Flow Data (Tables)

12 Months Ended

Dec. 31, 2020

Supplemental Cash Flow Data [Abstract]

Change in Operating Capital

The change in operating capital was (in millions):

	Year Ended December 31,
	2020		2019		2018
(Increase) decrease in accounts receivable	$	141.2	$	(156.6)	$	88.3
(Increase) decrease in work in process and other current assets	293.0		(99.8)		(269.3)
Increase (decrease) in accounts payable	(428.6)		276.3		242.9
Increase (decrease) in customer advances, taxes payable and other      current liabilities	65.9		87.2		54.3
Change in other assets and liabilities, net	(40.6)		18.0		(35.7)
Increase in operating capital	$	30.9	$	125.1	$	80.5
Income taxes paid	$	376.5	$	361.0	$	590.9
Interest paid	$	205.5	$	246.3	$	243.2

Supplemental Non-Cash Information Related to Leases

Supplemental non-cash information related to leases was (in millions):

	Year Ended December 31,
	2020		2019
Net increase in lease liability:
Operating leases	$	133.9	$	1,816.7
Finance leases	$	32.1	$	54.1