Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities Measured on Recurring Basis

December 31, 2017 (Successor)	Significant Other Observable Inputs (Level 2)
(In millions)
Assets at fair value:
Cash equivalents1	$	5,205
Marketable securities	$	952
Derivatives relating to:2
Foreign currency	46
Total assets at fair value	$	6,203
Liabilities at fair value:
Long-term debt3	$	11,560
Derivatives relating to:2
Foreign currency	79
Total liabilities at fair value	$	11,639

1. Time deposits included in "Cash and cash equivalents" and money market funds included in "Other current assets" in the consolidated balance sheets are held at amortized cost, which approximates fair value.

2. See Note 18 for the classification of derivatives in the consolidated balance sheets.

3. See Note 13 for information on fair value measurements of long-term debt.

December 31, 2016 (Predecessor)	Significant Other Observable Inputs (Level 2)
(In millions)
Assets at fair value:
Cash equivalents1	$	2,713
Marketable securities	$	1,362
Derivatives relating to:2
Foreign currency	182
Total assets at fair value	$	4,257
Liabilities at fair value:
Long-term debt3	$	8,464
Derivatives relating to:2
Foreign currency	121
Total liabilities at fair value	$	8,585

1. Time deposits included in "Cash and cash equivalents" and money market funds included in "Other current assets" in the consolidated balance sheets are held at amortized cost, which approximates fair value.

2. See Note 18 for the classification of derivatives in the consolidated balance sheets.

3. See Note 13 for information on fair value measurements of long-term debt.