Supplemental Cash Flow Statement Disclosures (Tables)

3 Months Ended

Mar. 31, 2019

Supplemental Cash Flow Statement Disclosures

Schedule of cash, cash equivalents and restricted cash

	March 31,
($ in millions)	2019		2018
Beginning of period:
Cash and cash equivalents	$	721	$	448
Current restricted cash (included in other current assets)		7		10
Noncurrent restricted cash (included in other assets)		—		1
Total cash, cash equivalents and restricted cash	$	728	$	459
End of period:
Cash and cash equivalents	$	603	$	477
Current restricted cash (included in other current assets)		6		8
Noncurrent restricted cash (included in other assets)		—		1
Cash reported in assets held for sale		63		—
Total cash, cash equivalents and restricted cash	$	672	$	486